Home / 1,378,992,023.60-2,068,488,035.40-863,013,988.40

Finding the Fourth Proportional to 1,378,992,023.60, 2,068,488,035.40 and 863,013,988.40

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Solution

The fourth proportional to 1,378,992,023.60, 2,068,488,035.40 and 863,013,988.40 is: 1,294,520,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,992,023.60 : 2,068,488,035.40 = 863,013,988.40 : x
  2. Step 2: Convert to fraction form
    1,378,992,023.60/2,068,488,035.40 = 863,013,988.40/x
  3. Step 3: Cross multiply
    1,378,992,023.60x = 2,068,488,035.40 × 863,013,988.40
  4. Step 4: Simplify right side
    1,378,992,023.60x = 1,785,134,109,388,234,496
  5. Step 5: Solve for x
    x = 1,785,134,109,388,234,496/1,378,992,023.60
  6. Step 6: Final answer
    x = 1,294,520,982.60

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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.