Home / 18,678,905.40-28,018,358.10-5,900,701.80

Finding the Fourth Proportional to 18,678,905.40, 28,018,358.10 and 5,900,701.80

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Solution

The fourth proportional to 18,678,905.40, 28,018,358.10 and 5,900,701.80 is: 8,851,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,905.40 : 28,018,358.10 = 5,900,701.80 : x
  2. Step 2: Convert to fraction form
    18,678,905.40/28,018,358.10 = 5,900,701.80/x
  3. Step 3: Cross multiply
    18,678,905.40x = 28,018,358.10 × 5,900,701.80
  4. Step 4: Simplify right side
    18,678,905.40x = 165,327,976,073,714.59
  5. Step 5: Solve for x
    x = 165,327,976,073,714.59/18,678,905.40
  6. Step 6: Final answer
    x = 8,851,052.70

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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.