Home / 121,581,945.71-167,782,863.27-65,827,359.28

Finding the Fourth Proportional to 121,581,945.71, 167,782,863.27 and 65,827,359.28

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Solution

The fourth proportional to 121,581,945.71, 167,782,863.27 and 65,827,359.28 is: 90,841,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,581,945.71 : 167,782,863.27 = 65,827,359.28 : x
  2. Step 2: Convert to fraction form
    121,581,945.71/167,782,863.27 = 65,827,359.28/x
  3. Step 3: Cross multiply
    121,581,945.71x = 167,782,863.27 × 65,827,359.28
  4. Step 4: Simplify right side
    121,581,945.71x = 11,044,702,821,957,988
  5. Step 5: Solve for x
    x = 11,044,702,821,957,988/121,581,945.71
  6. Step 6: Final answer
    x = 90,841,635.72

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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.