Home / 20,895,705.90-31,281,557.40-15,528,151.80

Finding the Fourth Proportional to 20,895,705.90, 31,281,557.40 and 15,528,151.80

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Solution

The fourth proportional to 20,895,705.90, 31,281,557.40 and 15,528,151.80 is: 23,246,152.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895,705.90 : 31,281,557.40 = 15,528,151.80 : x
  2. Step 2: Convert to fraction form
    20,895,705.90/31,281,557.40 = 15,528,151.80/x
  3. Step 3: Cross multiply
    20,895,705.90x = 31,281,557.40 × 15,528,151.80
  4. Step 4: Simplify right side
    20,895,705.90x = 485,744,771,847,613.31
  5. Step 5: Solve for x
    x = 485,744,771,847,613.31/20,895,705.90
  6. Step 6: Final answer
    x = 23,246,152.78

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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.