Home / 1,520,373,961.40-2,281,423,656.94-820,856,775.56

Finding the Fourth Proportional to 1,520,373,961.40, 2,281,423,656.94 and 820,856,775.56

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Solution

The fourth proportional to 1,520,373,961.40, 2,281,423,656.94 and 820,856,775.56 is: 1,231,750,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,373,961.40 : 2,281,423,656.94 = 820,856,775.56 : x
  2. Step 2: Convert to fraction form
    1,520,373,961.40/2,281,423,656.94 = 820,856,775.56/x
  3. Step 3: Cross multiply
    1,520,373,961.40x = 2,281,423,656.94 × 820,856,775.56
  4. Step 4: Simplify right side
    1,520,373,961.40x = 1,872,722,066,722,071,808
  5. Step 5: Solve for x
    x = 1,872,722,066,722,071,808/1,520,373,961.40
  6. Step 6: Final answer
    x = 1,231,750,946.98

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1.5x scale

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.