Home / 490,433,869.53-676,962,742.12-292,257,508.59

Finding the Fourth Proportional to 490,433,869.53, 676,962,742.12 and 292,257,508.59

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Solution

The fourth proportional to 490,433,869.53, 676,962,742.12 and 292,257,508.59 is: 403,413,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,433,869.53 : 676,962,742.12 = 292,257,508.59 : x
  2. Step 2: Convert to fraction form
    490,433,869.53/676,962,742.12 = 292,257,508.59/x
  3. Step 3: Cross multiply
    490,433,869.53x = 676,962,742.12 × 292,257,508.59
  4. Step 4: Simplify right side
    490,433,869.53x = 197,847,444,419,521,024
  5. Step 5: Solve for x
    x = 197,847,444,419,521,024/490,433,869.53
  6. Step 6: Final answer
    x = 403,413,093.41

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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.