Home / 86,215,445.20-129,341,830.20-25,637,294.80

Finding the Fourth Proportional to 86,215,445.20, 129,341,830.20 and 25,637,294.80

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Solution

The fourth proportional to 86,215,445.20, 129,341,830.20 and 25,637,294.80 is: 38,461,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215,445.20 : 129,341,830.20 = 25,637,294.80 : x
  2. Step 2: Convert to fraction form
    86,215,445.20/129,341,830.20 = 25,637,294.80/x
  3. Step 3: Cross multiply
    86,215,445.20x = 129,341,830.20 × 25,637,294.80
  4. Step 4: Simplify right side
    86,215,445.20x = 3,315,974,630,808,943
  5. Step 5: Solve for x
    x = 3,315,974,630,808,943/86,215,445.20
  6. Step 6: Final answer
    x = 38,461,491.71

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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.