Home / 99,649,025.20-149,473,537.80-86,017,563.55

Finding the Fourth Proportional to 99,649,025.20, 149,473,537.80 and 86,017,563.55

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Solution

The fourth proportional to 99,649,025.20, 149,473,537.80 and 86,017,563.55 is: 129,026,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,649,025.20 : 149,473,537.80 = 86,017,563.55 : x
  2. Step 2: Convert to fraction form
    99,649,025.20/149,473,537.80 = 86,017,563.55/x
  3. Step 3: Cross multiply
    99,649,025.20x = 149,473,537.80 × 86,017,563.55
  4. Step 4: Simplify right side
    99,649,025.20x = 12,857,349,536,754,828
  5. Step 5: Solve for x
    x = 12,857,349,536,754,828/99,649,025.20
  6. Step 6: Final answer
    x = 129,026,345.33

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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.