Home / 1,478,525,391.28-2,040,381,164.28-818,486,691.76

Finding the Fourth Proportional to 1,478,525,391.28, 2,040,381,164.28 and 818,486,691.76

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Solution

The fourth proportional to 1,478,525,391.28, 2,040,381,164.28 and 818,486,691.76 is: 1,129,520,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,525,391.28 : 2,040,381,164.28 = 818,486,691.76 : x
  2. Step 2: Convert to fraction form
    1,478,525,391.28/2,040,381,164.28 = 818,486,691.76/x
  3. Step 3: Cross multiply
    1,478,525,391.28x = 2,040,381,164.28 × 818,486,691.76
  4. Step 4: Simplify right side
    1,478,525,391.28x = 1,670,024,829,080,954,112
  5. Step 5: Solve for x
    x = 1,670,024,829,080,954,112/1,478,525,391.28
  6. Step 6: Final answer
    x = 1,129,520,560.78

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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.