Home / 15,128,714.57-20,874,770.75-9,017,711.69

Finding the Fourth Proportional to 15,128,714.57, 20,874,770.75 and 9,017,711.69

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Solution

The fourth proportional to 15,128,714.57, 20,874,770.75 and 9,017,711.69 is: 12,442,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,714.57 : 20,874,770.75 = 9,017,711.69 : x
  2. Step 2: Convert to fraction form
    15,128,714.57/20,874,770.75 = 9,017,711.69/x
  3. Step 3: Cross multiply
    15,128,714.57x = 20,874,770.75 × 9,017,711.69
  4. Step 4: Simplify right side
    15,128,714.57x = 188,242,664,136,515.53
  5. Step 5: Solve for x
    x = 188,242,664,136,515.53/15,128,714.57
  6. Step 6: Final answer
    x = 12,442,740.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.