Home / 18,752,691.18-28,109,855.13-12,688,063.26

Finding the Fourth Proportional to 18,752,691.18, 28,109,855.13 and 12,688,063.26

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Solution

The fourth proportional to 18,752,691.18, 28,109,855.13 and 12,688,063.26 is: 19,019,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752,691.18 : 28,109,855.13 = 12,688,063.26 : x
  2. Step 2: Convert to fraction form
    18,752,691.18/28,109,855.13 = 12,688,063.26/x
  3. Step 3: Cross multiply
    18,752,691.18x = 28,109,855.13 × 12,688,063.26
  4. Step 4: Simplify right side
    18,752,691.18x = 356,659,620,118,875.50
  5. Step 5: Solve for x
    x = 356,659,620,118,875.50/18,752,691.18
  6. Step 6: Final answer
    x = 19,019,116.60

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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.