Home / 90,724,139.40-136,086,209.15-90,724,139.40

Finding the Fourth Proportional to 90,724,139.40, 136,086,209.15 and 90,724,139.40

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Solution

The fourth proportional to 90,724,139.40, 136,086,209.15 and 90,724,139.40 is: 136,086,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,724,139.40 : 136,086,209.15 = 90,724,139.40 : x
  2. Step 2: Convert to fraction form
    90,724,139.40/136,086,209.15 = 90,724,139.40/x
  3. Step 3: Cross multiply
    90,724,139.40x = 136,086,209.15 × 90,724,139.40
  4. Step 4: Simplify right side
    90,724,139.40x = 12,346,304,208,888,536
  5. Step 5: Solve for x
    x = 12,346,304,208,888,536/90,724,139.40
  6. Step 6: Final answer
    x = 136,086,209.15

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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.