Home / 1,389,012,347.16-1,916,829,472.86-762,491,437.08

Finding the Fourth Proportional to 1,389,012,347.16, 1,916,829,472.86 and 762,491,437.08

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Solution

The fourth proportional to 1,389,012,347.16, 1,916,829,472.86 and 762,491,437.08 is: 1,052,234,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,012,347.16 : 1,916,829,472.86 = 762,491,437.08 : x
  2. Step 2: Convert to fraction form
    1,389,012,347.16/1,916,829,472.86 = 762,491,437.08/x
  3. Step 3: Cross multiply
    1,389,012,347.16x = 1,916,829,472.86 × 762,491,437.08
  4. Step 4: Simplify right side
    1,389,012,347.16x = 1,461,566,059,398,320,384
  5. Step 5: Solve for x
    x = 1,461,566,059,398,320,384/1,389,012,347.16
  6. Step 6: Final answer
    x = 1,052,234,029.73

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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.