Home / 1,391,015,524.32-1,919,647,459.62-764,506,159.20

Finding the Fourth Proportional to 1,391,015,524.32, 1,919,647,459.62 and 764,506,159.20

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Solution

The fourth proportional to 1,391,015,524.32, 1,919,647,459.62 and 764,506,159.20 is: 1,055,043,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,015,524.32 : 1,919,647,459.62 = 764,506,159.20 : x
  2. Step 2: Convert to fraction form
    1,391,015,524.32/1,919,647,459.62 = 764,506,159.20/x
  3. Step 3: Cross multiply
    1,391,015,524.32x = 1,919,647,459.62 × 764,506,159.20
  4. Step 4: Simplify right side
    1,391,015,524.32x = 1,467,582,306,372,123,392
  5. Step 5: Solve for x
    x = 1,467,582,306,372,123,392/1,391,015,524.32
  6. Step 6: Final answer
    x = 1,055,043,801.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.