Home / 1,581,132,432.80-2,181,962,964.09-876,329,916.57

Finding the Fourth Proportional to 1,581,132,432.80, 2,181,962,964.09 and 876,329,916.57

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Solution

The fourth proportional to 1,581,132,432.80, 2,181,962,964.09 and 876,329,916.57 is: 1,209,335,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,132,432.80 : 2,181,962,964.09 = 876,329,916.57 : x
  2. Step 2: Convert to fraction form
    1,581,132,432.80/2,181,962,964.09 = 876,329,916.57/x
  3. Step 3: Cross multiply
    1,581,132,432.80x = 2,181,962,964.09 × 876,329,916.57
  4. Step 4: Simplify right side
    1,581,132,432.80x = 1,912,119,422,264,528,384
  5. Step 5: Solve for x
    x = 1,912,119,422,264,528,384/1,581,132,432.80
  6. Step 6: Final answer
    x = 1,209,335,399.49

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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.