Home / 442,829,003.97-663,986,522.13-209,657,758.42

Finding the Fourth Proportional to 442,829,003.97, 663,986,522.13 and 209,657,758.42

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Solution

The fourth proportional to 442,829,003.97, 663,986,522.13 and 209,657,758.42 is: 314,364,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,829,003.97 : 663,986,522.13 = 209,657,758.42 : x
  2. Step 2: Convert to fraction form
    442,829,003.97/663,986,522.13 = 209,657,758.42/x
  3. Step 3: Cross multiply
    442,829,003.97x = 663,986,522.13 × 209,657,758.42
  4. Step 4: Simplify right side
    442,829,003.97x = 139,209,925,850,867,520
  5. Step 5: Solve for x
    x = 139,209,925,850,867,520/442,829,003.97
  6. Step 6: Final answer
    x = 314,364,968.43

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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.