Home / 12,071,769.40-18,107,654.10-9,237,417.40

Finding the Fourth Proportional to 12,071,769.40, 18,107,654.10 and 9,237,417.40

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Solution

The fourth proportional to 12,071,769.40, 18,107,654.10 and 9,237,417.40 is: 13,856,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071,769.40 : 18,107,654.10 = 9,237,417.40 : x
  2. Step 2: Convert to fraction form
    12,071,769.40/18,107,654.10 = 9,237,417.40/x
  3. Step 3: Cross multiply
    12,071,769.40x = 18,107,654.10 × 9,237,417.40
  4. Step 4: Simplify right side
    12,071,769.40x = 167,267,959,056,521.38
  5. Step 5: Solve for x
    x = 167,267,959,056,521.38/12,071,769.40
  6. Step 6: Final answer
    x = 13,856,126.10

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Similar ratio
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1.5x scale

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.