Home / 90,832,001.40-136,248,002.10-77,227,111.80

Finding the Fourth Proportional to 90,832,001.40, 136,248,002.10 and 77,227,111.80

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Solution

The fourth proportional to 90,832,001.40, 136,248,002.10 and 77,227,111.80 is: 115,840,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,832,001.40 : 136,248,002.10 = 77,227,111.80 : x
  2. Step 2: Convert to fraction form
    90,832,001.40/136,248,002.10 = 77,227,111.80/x
  3. Step 3: Cross multiply
    90,832,001.40x = 136,248,002.10 × 77,227,111.80
  4. Step 4: Simplify right side
    90,832,001.40x = 10,522,039,690,703,334
  5. Step 5: Solve for x
    x = 10,522,039,690,703,334/90,832,001.40
  6. Step 6: Final answer
    x = 115,840,667.70

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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.