Home / 8,681,138.20-13,018,020.90-4,194,789.40

Finding the Fourth Proportional to 8,681,138.20, 13,018,020.90 and 4,194,789.40

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Solution

The fourth proportional to 8,681,138.20, 13,018,020.90 and 4,194,789.40 is: 6,290,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681,138.20 : 13,018,020.90 = 4,194,789.40 : x
  2. Step 2: Convert to fraction form
    8,681,138.20/13,018,020.90 = 4,194,789.40/x
  3. Step 3: Cross multiply
    8,681,138.20x = 13,018,020.90 × 4,194,789.40
  4. Step 4: Simplify right side
    8,681,138.20x = 54,607,856,080,298.47
  5. Step 5: Solve for x
    x = 54,607,856,080,298.47/8,681,138.20
  6. Step 6: Final answer
    x = 6,290,402.80

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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.