Home / 1,120,522,182.60-1,680,783,273.90-393,510,894.60

Finding the Fourth Proportional to 1,120,522,182.60, 1,680,783,273.90 and 393,510,894.60

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Solution

The fourth proportional to 1,120,522,182.60, 1,680,783,273.90 and 393,510,894.60 is: 590,266,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,522,182.60 : 1,680,783,273.90 = 393,510,894.60 : x
  2. Step 2: Convert to fraction form
    1,120,522,182.60/1,680,783,273.90 = 393,510,894.60/x
  3. Step 3: Cross multiply
    1,120,522,182.60x = 1,680,783,273.90 × 393,510,894.60
  4. Step 4: Simplify right side
    1,120,522,182.60x = 661,406,529,741,105,920
  5. Step 5: Solve for x
    x = 661,406,529,741,105,920/1,120,522,182.60
  6. Step 6: Final answer
    x = 590,266,341.90

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Double scale
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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.