Home / 1,520,373,961.90-2,281,423,657.69-820,856,776.06

Finding the Fourth Proportional to 1,520,373,961.90, 2,281,423,657.69 and 820,856,776.06

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Solution

The fourth proportional to 1,520,373,961.90, 2,281,423,657.69 and 820,856,776.06 is: 1,231,750,947.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,373,961.90 : 2,281,423,657.69 = 820,856,776.06 : x
  2. Step 2: Convert to fraction form
    1,520,373,961.90/2,281,423,657.69 = 820,856,776.06/x
  3. Step 3: Cross multiply
    1,520,373,961.90x = 2,281,423,657.69 × 820,856,776.06
  4. Step 4: Simplify right side
    1,520,373,961.90x = 1,872,722,068,478,426,368
  5. Step 5: Solve for x
    x = 1,872,722,068,478,426,368/1,520,373,961.90
  6. Step 6: Final answer
    x = 1,231,750,947.73

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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.