Home / 84,131,684.10-125,938,926.16-71,720,225.55

Finding the Fourth Proportional to 84,131,684.10, 125,938,926.16 and 71,720,225.55

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Solution

The fourth proportional to 84,131,684.10, 125,938,926.16 and 71,720,225.55 is: 107,359,888.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,131,684.10 : 125,938,926.16 = 71,720,225.55 : x
  2. Step 2: Convert to fraction form
    84,131,684.10/125,938,926.16 = 71,720,225.55/x
  3. Step 3: Cross multiply
    84,131,684.10x = 125,938,926.16 × 71,720,225.55
  4. Step 4: Simplify right side
    84,131,684.10x = 9,032,368,189,540,694
  5. Step 5: Solve for x
    x = 9,032,368,189,540,694/84,131,684.10
  6. Step 6: Final answer
    x = 107,359,888.09

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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.