Home / 99,781,997.80-149,798,967.90-53,760,519.40

Finding the Fourth Proportional to 99,781,997.80, 149,798,967.90 and 53,760,519.40

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Solution

The fourth proportional to 99,781,997.80, 149,798,967.90 and 53,760,519.40 is: 80,708,649.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,781,997.80 : 149,798,967.90 = 53,760,519.40 : x
  2. Step 2: Convert to fraction form
    99,781,997.80/149,798,967.90 = 53,760,519.40/x
  3. Step 3: Cross multiply
    99,781,997.80x = 149,798,967.90 × 53,760,519.40
  4. Step 4: Simplify right side
    99,781,997.80x = 8,053,270,319,887,927
  5. Step 5: Solve for x
    x = 8,053,270,319,887,927/99,781,997.80
  6. Step 6: Final answer
    x = 80,708,649.83

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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.