Home / 10,991,721.20-16,487,581.80-4,609,180.40

Finding the Fourth Proportional to 10,991,721.20, 16,487,581.80 and 4,609,180.40

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Solution

The fourth proportional to 10,991,721.20, 16,487,581.80 and 4,609,180.40 is: 6,913,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991,721.20 : 16,487,581.80 = 4,609,180.40 : x
  2. Step 2: Convert to fraction form
    10,991,721.20/16,487,581.80 = 4,609,180.40/x
  3. Step 3: Cross multiply
    10,991,721.20x = 16,487,581.80 × 4,609,180.40
  4. Step 4: Simplify right side
    10,991,721.20x = 75,994,238,875,956.73
  5. Step 5: Solve for x
    x = 75,994,238,875,956.73/10,991,721.20
  6. Step 6: Final answer
    x = 6,913,770.60

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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.