Home / 7,126,654.40-10,689,981.60-2,078,475.20

Finding the Fourth Proportional to 7,126,654.40, 10,689,981.60 and 2,078,475.20

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Solution

The fourth proportional to 7,126,654.40, 10,689,981.60 and 2,078,475.20 is: 3,117,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126,654.40 : 10,689,981.60 = 2,078,475.20 : x
  2. Step 2: Convert to fraction form
    7,126,654.40/10,689,981.60 = 2,078,475.20/x
  3. Step 3: Cross multiply
    7,126,654.40x = 10,689,981.60 × 2,078,475.20
  4. Step 4: Simplify right side
    7,126,654.40x = 22,218,861,644,056.32
  5. Step 5: Solve for x
    x = 22,218,861,644,056.32/7,126,654.40
  6. Step 6: Final answer
    x = 3,117,712.80

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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.