Home / 99,765,042.30-149,647,563.45-65,724,824.70

Finding the Fourth Proportional to 99,765,042.30, 149,647,563.45 and 65,724,824.70

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Solution

The fourth proportional to 99,765,042.30, 149,647,563.45 and 65,724,824.70 is: 98,587,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,765,042.30 : 149,647,563.45 = 65,724,824.70 : x
  2. Step 2: Convert to fraction form
    99,765,042.30/149,647,563.45 = 65,724,824.70/x
  3. Step 3: Cross multiply
    99,765,042.30x = 149,647,563.45 × 65,724,824.70
  4. Step 4: Simplify right side
    99,765,042.30x = 9,835,559,874,533,376
  5. Step 5: Solve for x
    x = 9,835,559,874,533,376/99,765,042.30
  6. Step 6: Final answer
    x = 98,587,237.05

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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.