Home / 639,208,857.75-956,043,445.05-376,266,761.43

Finding the Fourth Proportional to 639,208,857.75, 956,043,445.05 and 376,266,761.43

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Solution

The fourth proportional to 639,208,857.75, 956,043,445.05 and 376,266,761.43 is: 562,769,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,208,857.75 : 956,043,445.05 = 376,266,761.43 : x
  2. Step 2: Convert to fraction form
    639,208,857.75/956,043,445.05 = 376,266,761.43/x
  3. Step 3: Cross multiply
    639,208,857.75x = 956,043,445.05 × 376,266,761.43
  4. Step 4: Simplify right side
    639,208,857.75x = 359,727,370,855,343,680
  5. Step 5: Solve for x
    x = 359,727,370,855,343,680/639,208,857.75
  6. Step 6: Final answer
    x = 562,769,690.21

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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.