Home / 99,681,762.20-149,522,643.30-86,244,834.20

Finding the Fourth Proportional to 99,681,762.20, 149,522,643.30 and 86,244,834.20

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Solution

The fourth proportional to 99,681,762.20, 149,522,643.30 and 86,244,834.20 is: 129,367,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681,762.20 : 149,522,643.30 = 86,244,834.20 : x
  2. Step 2: Convert to fraction form
    99,681,762.20/149,522,643.30 = 86,244,834.20/x
  3. Step 3: Cross multiply
    99,681,762.20x = 149,522,643.30 × 86,244,834.20
  4. Step 4: Simplify right side
    99,681,762.20x = 12,895,555,580,554,242
  5. Step 5: Solve for x
    x = 12,895,555,580,554,242/99,681,762.20
  6. Step 6: Final answer
    x = 129,367,251.30

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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.