Home / 1,397,913,869.16-1,929,162,137.94-762,875,363.61

Finding the Fourth Proportional to 1,397,913,869.16, 1,929,162,137.94 and 762,875,363.61

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Solution

The fourth proportional to 1,397,913,869.16, 1,929,162,137.94 and 762,875,363.61 is: 1,052,790,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,913,869.16 : 1,929,162,137.94 = 762,875,363.61 : x
  2. Step 2: Convert to fraction form
    1,397,913,869.16/1,929,162,137.94 = 762,875,363.61/x
  3. Step 3: Cross multiply
    1,397,913,869.16x = 1,929,162,137.94 × 762,875,363.61
  4. Step 4: Simplify right side
    1,397,913,869.16x = 1,471,710,267,443,622,656
  5. Step 5: Solve for x
    x = 1,471,710,267,443,622,656/1,397,913,869.16
  6. Step 6: Final answer
    x = 1,052,790,375.65

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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.