Home / 82,911,613.22-124,383,360.51-31,789,644.98

Finding the Fourth Proportional to 82,911,613.22, 124,383,360.51 and 31,789,644.98

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Solution

The fourth proportional to 82,911,613.22, 124,383,360.51 and 31,789,644.98 is: 47,690,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,911,613.22 : 124,383,360.51 = 31,789,644.98 : x
  2. Step 2: Convert to fraction form
    82,911,613.22/124,383,360.51 = 31,789,644.98/x
  3. Step 3: Cross multiply
    82,911,613.22x = 124,383,360.51 × 31,789,644.98
  4. Step 4: Simplify right side
    82,911,613.22x = 3,954,102,872,032,252
  5. Step 5: Solve for x
    x = 3,954,102,872,032,252/82,911,613.22
  6. Step 6: Final answer
    x = 47,690,579.38

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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.