Home / 12,455,423.10-18,683,134.65-9,935,999.10

Finding the Fourth Proportional to 12,455,423.10, 18,683,134.65 and 9,935,999.10

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Solution

The fourth proportional to 12,455,423.10, 18,683,134.65 and 9,935,999.10 is: 14,903,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,423.10 : 18,683,134.65 = 9,935,999.10 : x
  2. Step 2: Convert to fraction form
    12,455,423.10/18,683,134.65 = 9,935,999.10/x
  3. Step 3: Cross multiply
    12,455,423.10x = 18,683,134.65 × 9,935,999.10
  4. Step 4: Simplify right side
    12,455,423.10x = 185,635,609,067,578.78
  5. Step 5: Solve for x
    x = 185,635,609,067,578.78/12,455,423.10
  6. Step 6: Final answer
    x = 14,903,998.65

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Double scale
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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.