Home / 20,219,816.10-30,329,724.15-12,567,065.70

Finding the Fourth Proportional to 20,219,816.10, 30,329,724.15 and 12,567,065.70

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Solution

The fourth proportional to 20,219,816.10, 30,329,724.15 and 12,567,065.70 is: 18,850,598.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,816.10 : 30,329,724.15 = 12,567,065.70 : x
  2. Step 2: Convert to fraction form
    20,219,816.10/30,329,724.15 = 12,567,065.70/x
  3. Step 3: Cross multiply
    20,219,816.10x = 30,329,724.15 × 12,567,065.70
  4. Step 4: Simplify right side
    20,219,816.10x = 381,155,636,055,926.62
  5. Step 5: Solve for x
    x = 381,155,636,055,926.62/20,219,816.10
  6. Step 6: Final answer
    x = 18,850,598.55

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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.