Home / 1,520,373,960.40-2,281,423,655.44-820,856,774.56

Finding the Fourth Proportional to 1,520,373,960.40, 2,281,423,655.44 and 820,856,774.56

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Solution

The fourth proportional to 1,520,373,960.40, 2,281,423,655.44 and 820,856,774.56 is: 1,231,750,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,373,960.40 : 2,281,423,655.44 = 820,856,774.56 : x
  2. Step 2: Convert to fraction form
    1,520,373,960.40/2,281,423,655.44 = 820,856,774.56/x
  3. Step 3: Cross multiply
    1,520,373,960.40x = 2,281,423,655.44 × 820,856,774.56
  4. Step 4: Simplify right side
    1,520,373,960.40x = 1,872,722,063,209,363,200
  5. Step 5: Solve for x
    x = 1,872,722,063,209,363,200/1,520,373,960.40
  6. Step 6: Final answer
    x = 1,231,750,945.48

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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.