Home / 911,535,540.15-1,257,920,278.89-493,847,813.16

Finding the Fourth Proportional to 911,535,540.15, 1,257,920,278.89 and 493,847,813.16

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Solution

The fourth proportional to 911,535,540.15, 1,257,920,278.89 and 493,847,813.16 is: 681,510,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,535,540.15 : 1,257,920,278.89 = 493,847,813.16 : x
  2. Step 2: Convert to fraction form
    911,535,540.15/1,257,920,278.89 = 493,847,813.16/x
  3. Step 3: Cross multiply
    911,535,540.15x = 1,257,920,278.89 × 493,847,813.16
  4. Step 4: Simplify right side
    911,535,540.15x = 621,221,178,859,443,840
  5. Step 5: Solve for x
    x = 621,221,178,859,443,840/911,535,540.15
  6. Step 6: Final answer
    x = 681,510,650.43

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