Home / 791,913,814.76-1,187,870,724.12-422,329,063.88

Finding the Fourth Proportional to 791,913,814.76, 1,187,870,724.12 and 422,329,063.88

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Solution

The fourth proportional to 791,913,814.76, 1,187,870,724.12 and 422,329,063.88 is: 633,493,596.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,913,814.76 : 1,187,870,724.12 = 422,329,063.88 : x
  2. Step 2: Convert to fraction form
    791,913,814.76/1,187,870,724.12 = 422,329,063.88/x
  3. Step 3: Cross multiply
    791,913,814.76x = 1,187,870,724.12 × 422,329,063.88
  4. Step 4: Simplify right side
    791,913,814.76x = 501,672,330,928,057,280
  5. Step 5: Solve for x
    x = 501,672,330,928,057,280/791,913,814.76
  6. Step 6: Final answer
    x = 633,493,596.88

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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.