Home / 87,943,605.60-131,915,408.40-66,119,095.20

Finding the Fourth Proportional to 87,943,605.60, 131,915,408.40 and 66,119,095.20

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Solution

The fourth proportional to 87,943,605.60, 131,915,408.40 and 66,119,095.20 is: 99,178,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,943,605.60 : 131,915,408.40 = 66,119,095.20 : x
  2. Step 2: Convert to fraction form
    87,943,605.60/131,915,408.40 = 66,119,095.20/x
  3. Step 3: Cross multiply
    87,943,605.60x = 131,915,408.40 × 66,119,095.20
  4. Step 4: Simplify right side
    87,943,605.60x = 8,722,127,446,346,480
  5. Step 5: Solve for x
    x = 8,722,127,446,346,480/87,943,605.60
  6. Step 6: Final answer
    x = 99,178,642.80

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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.