Home / 492,811,708.01-679,971,432.18-291,768,755.15

Finding the Fourth Proportional to 492,811,708.01, 679,971,432.18 and 291,768,755.15

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Solution

The fourth proportional to 492,811,708.01, 679,971,432.18 and 291,768,755.15 is: 402,576,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,811,708.01 : 679,971,432.18 = 291,768,755.15 : x
  2. Step 2: Convert to fraction form
    492,811,708.01/679,971,432.18 = 291,768,755.15/x
  3. Step 3: Cross multiply
    492,811,708.01x = 679,971,432.18 × 291,768,755.15
  4. Step 4: Simplify right side
    492,811,708.01x = 198,394,418,304,721,216
  5. Step 5: Solve for x
    x = 198,394,418,304,721,216/492,811,708.01
  6. Step 6: Final answer
    x = 402,576,511.64

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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.