Home / 18,435,877.20-27,653,815.80-12,696,314.40

Finding the Fourth Proportional to 18,435,877.20, 27,653,815.80 and 12,696,314.40

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Solution

The fourth proportional to 18,435,877.20, 27,653,815.80 and 12,696,314.40 is: 19,044,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435,877.20 : 27,653,815.80 = 12,696,314.40 : x
  2. Step 2: Convert to fraction form
    18,435,877.20/27,653,815.80 = 12,696,314.40/x
  3. Step 3: Cross multiply
    18,435,877.20x = 27,653,815.80 × 12,696,314.40
  4. Step 4: Simplify right side
    18,435,877.20x = 351,101,539,756,487.56
  5. Step 5: Solve for x
    x = 351,101,539,756,487.56/18,435,877.20
  6. Step 6: Final answer
    x = 19,044,471.60

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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.