Home / 102,906,298.92-142,010,939.70-56,499,543.48

Finding the Fourth Proportional to 102,906,298.92, 142,010,939.70 and 56,499,543.48

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Solution

The fourth proportional to 102,906,298.92, 142,010,939.70 and 56,499,543.48 is: 77,969,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,906,298.92 : 142,010,939.70 = 56,499,543.48 : x
  2. Step 2: Convert to fraction form
    102,906,298.92/142,010,939.70 = 56,499,543.48/x
  3. Step 3: Cross multiply
    102,906,298.92x = 142,010,939.70 × 56,499,543.48
  4. Step 4: Simplify right side
    102,906,298.92x = 8,023,553,262,215,807
  5. Step 5: Solve for x
    x = 8,023,553,262,215,807/102,906,298.92
  6. Step 6: Final answer
    x = 77,969,505.72

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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.