Home / 202,092,078.30-303,138,117.45-72,719,655.90

Finding the Fourth Proportional to 202,092,078.30, 303,138,117.45 and 72,719,655.90

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Solution

The fourth proportional to 202,092,078.30, 303,138,117.45 and 72,719,655.90 is: 109,079,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,092,078.30 : 303,138,117.45 = 72,719,655.90 : x
  2. Step 2: Convert to fraction form
    202,092,078.30/303,138,117.45 = 72,719,655.90/x
  3. Step 3: Cross multiply
    202,092,078.30x = 303,138,117.45 × 72,719,655.90
  4. Step 4: Simplify right side
    202,092,078.30x = 22,044,099,591,137,788
  5. Step 5: Solve for x
    x = 22,044,099,591,137,788/202,092,078.30
  6. Step 6: Final answer
    x = 109,079,483.85

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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.