Home / 871,056,121.20-1,306,584,181.80-386,381,929.20

Finding the Fourth Proportional to 871,056,121.20, 1,306,584,181.80 and 386,381,929.20

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Solution

The fourth proportional to 871,056,121.20, 1,306,584,181.80 and 386,381,929.20 is: 579,572,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,056,121.20 : 1,306,584,181.80 = 386,381,929.20 : x
  2. Step 2: Convert to fraction form
    871,056,121.20/1,306,584,181.80 = 386,381,929.20/x
  3. Step 3: Cross multiply
    871,056,121.20x = 1,306,584,181.80 × 386,381,929.20
  4. Step 4: Simplify right side
    871,056,121.20x = 504,840,516,826,087,488
  5. Step 5: Solve for x
    x = 504,840,516,826,087,488/871,056,121.20
  6. Step 6: Final answer
    x = 579,572,893.80

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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.