Home / 12,376,688.22-18,565,006.82-6,982,890.12

Finding the Fourth Proportional to 12,376,688.22, 18,565,006.82 and 6,982,890.12

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Solution

The fourth proportional to 12,376,688.22, 18,565,006.82 and 6,982,890.12 is: 10,474,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376,688.22 : 18,565,006.82 = 6,982,890.12 : x
  2. Step 2: Convert to fraction form
    12,376,688.22/18,565,006.82 = 6,982,890.12/x
  3. Step 3: Cross multiply
    12,376,688.22x = 18,565,006.82 × 6,982,890.12
  4. Step 4: Simplify right side
    12,376,688.22x = 129,637,402,666,196.17
  5. Step 5: Solve for x
    x = 129,637,402,666,196.17/12,376,688.22
  6. Step 6: Final answer
    x = 10,474,320.78

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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.