Home / 90,724,363.20-136,086,544.80-65,215,195.20

Finding the Fourth Proportional to 90,724,363.20, 136,086,544.80 and 65,215,195.20

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Solution

The fourth proportional to 90,724,363.20, 136,086,544.80 and 65,215,195.20 is: 97,822,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,724,363.20 : 136,086,544.80 = 65,215,195.20 : x
  2. Step 2: Convert to fraction form
    90,724,363.20/136,086,544.80 = 65,215,195.20/x
  3. Step 3: Cross multiply
    90,724,363.20x = 136,086,544.80 × 65,215,195.20
  4. Step 4: Simplify right side
    90,724,363.20x = 8,874,910,583,225,546
  5. Step 5: Solve for x
    x = 8,874,910,583,225,546/90,724,363.20
  6. Step 6: Final answer
    x = 97,822,792.80

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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.