Home / 100,307,973.90-138,440,134.60-61,172,452.64

Finding the Fourth Proportional to 100,307,973.90, 138,440,134.60 and 61,172,452.64

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Solution

The fourth proportional to 100,307,973.90, 138,440,134.60 and 61,172,452.64 is: 84,427,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,307,973.90 : 138,440,134.60 = 61,172,452.64 : x
  2. Step 2: Convert to fraction form
    100,307,973.90/138,440,134.60 = 61,172,452.64/x
  3. Step 3: Cross multiply
    100,307,973.90x = 138,440,134.60 × 61,172,452.64
  4. Step 4: Simplify right side
    100,307,973.90x = 8,468,722,577,293,725
  5. Step 5: Solve for x
    x = 8,468,722,577,293,725/100,307,973.90
  6. Step 6: Final answer
    x = 84,427,212.00

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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.