Home / 91,853,999.10-137,780,998.65-51,459,234.30

Finding the Fourth Proportional to 91,853,999.10, 137,780,998.65 and 51,459,234.30

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Solution

The fourth proportional to 91,853,999.10, 137,780,998.65 and 51,459,234.30 is: 77,188,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,853,999.10 : 137,780,998.65 = 51,459,234.30 : x
  2. Step 2: Convert to fraction form
    91,853,999.10/137,780,998.65 = 51,459,234.30/x
  3. Step 3: Cross multiply
    91,853,999.10x = 137,780,998.65 × 51,459,234.30
  4. Step 4: Simplify right side
    91,853,999.10x = 7,090,104,691,618,334
  5. Step 5: Solve for x
    x = 7,090,104,691,618,334/91,853,999.10
  6. Step 6: Final answer
    x = 77,188,851.45

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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.