Home / 130,457,916.92-180,032,041.17-71,721,581.38

Finding the Fourth Proportional to 130,457,916.92, 180,032,041.17 and 71,721,581.38

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Solution

The fourth proportional to 130,457,916.92, 180,032,041.17 and 71,721,581.38 is: 98,975,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,457,916.92 : 180,032,041.17 = 71,721,581.38 : x
  2. Step 2: Convert to fraction form
    130,457,916.92/180,032,041.17 = 71,721,581.38/x
  3. Step 3: Cross multiply
    130,457,916.92x = 180,032,041.17 × 71,721,581.38
  4. Step 4: Simplify right side
    130,457,916.92x = 12,912,182,691,331,584
  5. Step 5: Solve for x
    x = 12,912,182,691,331,584/130,457,916.92
  6. Step 6: Final answer
    x = 98,975,845.97

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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.