Home / 1,478,525,447.28-2,040,381,241.56-818,486,747.76

Finding the Fourth Proportional to 1,478,525,447.28, 2,040,381,241.56 and 818,486,747.76

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Solution

The fourth proportional to 1,478,525,447.28, 2,040,381,241.56 and 818,486,747.76 is: 1,129,520,638.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,525,447.28 : 2,040,381,241.56 = 818,486,747.76 : x
  2. Step 2: Convert to fraction form
    1,478,525,447.28/2,040,381,241.56 = 818,486,747.76/x
  3. Step 3: Cross multiply
    1,478,525,447.28x = 2,040,381,241.56 × 818,486,747.76
  4. Step 4: Simplify right side
    1,478,525,447.28x = 1,670,025,006,594,955,264
  5. Step 5: Solve for x
    x = 1,670,025,006,594,955,264/1,478,525,447.28
  6. Step 6: Final answer
    x = 1,129,520,638.06

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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.