Home / 15,128,717.57-20,874,774.89-9,017,714.69

Finding the Fourth Proportional to 15,128,717.57, 20,874,774.89 and 9,017,714.69

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Solution

The fourth proportional to 15,128,717.57, 20,874,774.89 and 9,017,714.69 is: 12,442,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,717.57 : 20,874,774.89 = 9,017,714.69 : x
  2. Step 2: Convert to fraction form
    15,128,717.57/20,874,774.89 = 9,017,714.69/x
  3. Step 3: Cross multiply
    15,128,717.57x = 20,874,774.89 × 9,017,714.69
  4. Step 4: Simplify right side
    15,128,717.57x = 188,242,764,026,533.72
  5. Step 5: Solve for x
    x = 188,242,764,026,533.72/15,128,717.57
  6. Step 6: Final answer
    x = 12,442,744.29

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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.