Home / 1,397,913,884.02-1,929,162,158.49-762,875,378.47

Finding the Fourth Proportional to 1,397,913,884.02, 1,929,162,158.49 and 762,875,378.47

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Solution

The fourth proportional to 1,397,913,884.02, 1,929,162,158.49 and 762,875,378.47 is: 1,052,790,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,913,884.02 : 1,929,162,158.49 = 762,875,378.47 : x
  2. Step 2: Convert to fraction form
    1,397,913,884.02/1,929,162,158.49 = 762,875,378.47/x
  3. Step 3: Cross multiply
    1,397,913,884.02x = 1,929,162,158.49 × 762,875,378.47
  4. Step 4: Simplify right side
    1,397,913,884.02x = 1,471,710,311,788,060,928
  5. Step 5: Solve for x
    x = 1,471,710,311,788,060,928/1,397,913,884.02
  6. Step 6: Final answer
    x = 1,052,790,396.18

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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.