Home / 1,145,536,446.30-1,718,304,669.45-418,430,679.90

Finding the Fourth Proportional to 1,145,536,446.30, 1,718,304,669.45 and 418,430,679.90

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Solution

The fourth proportional to 1,145,536,446.30, 1,718,304,669.45 and 418,430,679.90 is: 627,646,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,536,446.30 : 1,718,304,669.45 = 418,430,679.90 : x
  2. Step 2: Convert to fraction form
    1,145,536,446.30/1,718,304,669.45 = 418,430,679.90/x
  3. Step 3: Cross multiply
    1,145,536,446.30x = 1,718,304,669.45 × 418,430,679.90
  4. Step 4: Simplify right side
    1,145,536,446.30x = 718,991,391,113,308,288
  5. Step 5: Solve for x
    x = 718,991,391,113,308,288/1,145,536,446.30
  6. Step 6: Final answer
    x = 627,646,019.85

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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.