Home / 10,109,905.30-15,164,857.95-9,102,135.70

Finding the Fourth Proportional to 10,109,905.30, 15,164,857.95 and 9,102,135.70

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Solution

The fourth proportional to 10,109,905.30, 15,164,857.95 and 9,102,135.70 is: 13,653,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,905.30 : 15,164,857.95 = 9,102,135.70 : x
  2. Step 2: Convert to fraction form
    10,109,905.30/15,164,857.95 = 9,102,135.70/x
  3. Step 3: Cross multiply
    10,109,905.30x = 15,164,857.95 × 9,102,135.70
  4. Step 4: Simplify right side
    10,109,905.30x = 138,032,594,932,123.80
  5. Step 5: Solve for x
    x = 138,032,594,932,123.80/10,109,905.30
  6. Step 6: Final answer
    x = 13,653,203.55

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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.