Home / 67,418,999.80-101,128,499.70-38,753,553.40

Finding the Fourth Proportional to 67,418,999.80, 101,128,499.70 and 38,753,553.40

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Solution

The fourth proportional to 67,418,999.80, 101,128,499.70 and 38,753,553.40 is: 58,130,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,418,999.80 : 101,128,499.70 = 38,753,553.40 : x
  2. Step 2: Convert to fraction form
    67,418,999.80/101,128,499.70 = 38,753,553.40/x
  3. Step 3: Cross multiply
    67,418,999.80x = 101,128,499.70 × 38,753,553.40
  4. Step 4: Simplify right side
    67,418,999.80x = 3,919,088,713,385,834
  5. Step 5: Solve for x
    x = 3,919,088,713,385,834/67,418,999.80
  6. Step 6: Final answer
    x = 58,130,330.10

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1.5x scale

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.