Home / 1,276,856,200.18-1,915,341,380.97-391,477,856.14

Finding the Fourth Proportional to 1,276,856,200.18, 1,915,341,380.97 and 391,477,856.14

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Solution

The fourth proportional to 1,276,856,200.18, 1,915,341,380.97 and 391,477,856.14 is: 587,234,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,856,200.18 : 1,915,341,380.97 = 391,477,856.14 : x
  2. Step 2: Convert to fraction form
    1,276,856,200.18/1,915,341,380.97 = 391,477,856.14/x
  3. Step 3: Cross multiply
    1,276,856,200.18x = 1,915,341,380.97 × 391,477,856.14
  4. Step 4: Simplify right side
    1,276,856,200.18x = 749,813,737,598,362,624
  5. Step 5: Solve for x
    x = 749,813,737,598,362,624/1,276,856,200.18
  6. Step 6: Final answer
    x = 587,234,284.87

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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.