Home / 1,098,791,380.20-1,648,187,070.30-408,555,809.40

Finding the Fourth Proportional to 1,098,791,380.20, 1,648,187,070.30 and 408,555,809.40

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Solution

The fourth proportional to 1,098,791,380.20, 1,648,187,070.30 and 408,555,809.40 is: 612,833,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,791,380.20 : 1,648,187,070.30 = 408,555,809.40 : x
  2. Step 2: Convert to fraction form
    1,098,791,380.20/1,648,187,070.30 = 408,555,809.40/x
  3. Step 3: Cross multiply
    1,098,791,380.20x = 1,648,187,070.30 × 408,555,809.40
  4. Step 4: Simplify right side
    1,098,791,380.20x = 673,376,402,549,031,168
  5. Step 5: Solve for x
    x = 673,376,402,549,031,168/1,098,791,380.20
  6. Step 6: Final answer
    x = 612,833,714.10

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Double scale
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Similar ratio
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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.