Home / 1,520,373,962.90-2,281,423,659.19-820,856,777.06

Finding the Fourth Proportional to 1,520,373,962.90, 2,281,423,659.19 and 820,856,777.06

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Solution

The fourth proportional to 1,520,373,962.90, 2,281,423,659.19 and 820,856,777.06 is: 1,231,750,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,373,962.90 : 2,281,423,659.19 = 820,856,777.06 : x
  2. Step 2: Convert to fraction form
    1,520,373,962.90/2,281,423,659.19 = 820,856,777.06/x
  3. Step 3: Cross multiply
    1,520,373,962.90x = 2,281,423,659.19 × 820,856,777.06
  4. Step 4: Simplify right side
    1,520,373,962.90x = 1,872,722,071,991,135,232
  5. Step 5: Solve for x
    x = 1,872,722,071,991,135,232/1,520,373,962.90
  6. Step 6: Final answer
    x = 1,231,750,949.23

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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.