Home / 121,535,649.30-167,719,182.96-65,781,059.50

Finding the Fourth Proportional to 121,535,649.30, 167,719,182.96 and 65,781,059.50

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Solution

The fourth proportional to 121,535,649.30, 167,719,182.96 and 65,781,059.50 is: 90,777,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,535,649.30 : 167,719,182.96 = 65,781,059.50 : x
  2. Step 2: Convert to fraction form
    121,535,649.30/167,719,182.96 = 65,781,059.50/x
  3. Step 3: Cross multiply
    121,535,649.30x = 167,719,182.96 × 65,781,059.50
  4. Step 4: Simplify right side
    121,535,649.30x = 11,032,745,553,583,146
  5. Step 5: Solve for x
    x = 11,032,745,553,583,146/121,535,649.30
  6. Step 6: Final answer
    x = 90,777,855.03

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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.