Home / 7,406,143.20-11,109,214.80-6,146,431.20

Finding the Fourth Proportional to 7,406,143.20, 11,109,214.80 and 6,146,431.20

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Solution

The fourth proportional to 7,406,143.20, 11,109,214.80 and 6,146,431.20 is: 9,219,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406,143.20 : 11,109,214.80 = 6,146,431.20 : x
  2. Step 2: Convert to fraction form
    7,406,143.20/11,109,214.80 = 6,146,431.20/x
  3. Step 3: Cross multiply
    7,406,143.20x = 11,109,214.80 × 6,146,431.20
  4. Step 4: Simplify right side
    7,406,143.20x = 68,282,024,454,221.77
  5. Step 5: Solve for x
    x = 68,282,024,454,221.77/7,406,143.20
  6. Step 6: Final answer
    x = 9,219,646.80

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Similar ratio
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1.5x scale

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.