Home / 1,210,190,169.83-1,670,045,458.21-674,364,418.80

Finding the Fourth Proportional to 1,210,190,169.83, 1,670,045,458.21 and 674,364,418.80

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Solution

The fourth proportional to 1,210,190,169.83, 1,670,045,458.21 and 674,364,418.80 is: 930,613,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,190,169.83 : 1,670,045,458.21 = 674,364,418.80 : x
  2. Step 2: Convert to fraction form
    1,210,190,169.83/1,670,045,458.21 = 674,364,418.80/x
  3. Step 3: Cross multiply
    1,210,190,169.83x = 1,670,045,458.21 × 674,364,418.80
  4. Step 4: Simplify right side
    1,210,190,169.83x = 1,126,219,234,795,366,272
  5. Step 5: Solve for x
    x = 1,126,219,234,795,366,272/1,210,190,169.83
  6. Step 6: Final answer
    x = 930,613,438.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.