Home / 1,072,346,773.80-1,608,520,160.70-664,200,085.80

Finding the Fourth Proportional to 1,072,346,773.80, 1,608,520,160.70 and 664,200,085.80

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Solution

The fourth proportional to 1,072,346,773.80, 1,608,520,160.70 and 664,200,085.80 is: 996,300,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,346,773.80 : 1,608,520,160.70 = 664,200,085.80 : x
  2. Step 2: Convert to fraction form
    1,072,346,773.80/1,608,520,160.70 = 664,200,085.80/x
  3. Step 3: Cross multiply
    1,072,346,773.80x = 1,608,520,160.70 × 664,200,085.80
  4. Step 4: Simplify right side
    1,072,346,773.80x = 1,068,379,228,747,969,792
  5. Step 5: Solve for x
    x = 1,068,379,228,747,969,792/1,072,346,773.80
  6. Step 6: Final answer
    x = 996,300,128.70

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Half scale
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Double scale
Find fourth proportional to 1,072,346,774.80, 1,608,520,162.20 and 664,200,086.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.