Home / 12,982,790.70-19,474,186.05-12,429,917.10

Finding the Fourth Proportional to 12,982,790.70, 19,474,186.05 and 12,429,917.10

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Solution

The fourth proportional to 12,982,790.70, 19,474,186.05 and 12,429,917.10 is: 18,644,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,790.70 : 19,474,186.05 = 12,429,917.10 : x
  2. Step 2: Convert to fraction form
    12,982,790.70/19,474,186.05 = 12,429,917.10/x
  3. Step 3: Cross multiply
    12,982,790.70x = 19,474,186.05 × 12,429,917.10
  4. Step 4: Simplify right side
    12,982,790.70x = 242,062,518,191,476.47
  5. Step 5: Solve for x
    x = 242,062,518,191,476.47/12,982,790.70
  6. Step 6: Final answer
    x = 18,644,875.65

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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.