Home / 791,913,930.12-1,187,870,897.03-422,329,179.29

Finding the Fourth Proportional to 791,913,930.12, 1,187,870,897.03 and 422,329,179.29

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Solution

The fourth proportional to 791,913,930.12, 1,187,870,897.03 and 422,329,179.29 is: 633,493,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,913,930.12 : 1,187,870,897.03 = 422,329,179.29 : x
  2. Step 2: Convert to fraction form
    791,913,930.12/1,187,870,897.03 = 422,329,179.29/x
  3. Step 3: Cross multiply
    791,913,930.12x = 1,187,870,897.03 × 422,329,179.29
  4. Step 4: Simplify right side
    791,913,930.12x = 501,672,541,037,105,088
  5. Step 5: Solve for x
    x = 501,672,541,037,105,088/791,913,930.12
  6. Step 6: Final answer
    x = 633,493,769.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.