Home / 1,398,035,238.82-1,929,329,532.10-762,996,461.50

Finding the Fourth Proportional to 1,398,035,238.82, 1,929,329,532.10 and 762,996,461.50

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Solution

The fourth proportional to 1,398,035,238.82, 1,929,329,532.10 and 762,996,461.50 is: 1,052,957,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,035,238.82 : 1,929,329,532.10 = 762,996,461.50 : x
  2. Step 2: Convert to fraction form
    1,398,035,238.82/1,929,329,532.10 = 762,996,461.50/x
  3. Step 3: Cross multiply
    1,398,035,238.82x = 1,929,329,532.10 × 762,996,461.50
  4. Step 4: Simplify right side
    1,398,035,238.82x = 1,472,071,606,059,750,656
  5. Step 5: Solve for x
    x = 1,472,071,606,059,750,656/1,398,035,238.82
  6. Step 6: Final answer
    x = 1,052,957,439.97

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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.