Home / 75,275,452.12-103,881,915.12-42,238,144.72

Finding the Fourth Proportional to 75,275,452.12, 103,881,915.12 and 42,238,144.72

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Solution

The fourth proportional to 75,275,452.12, 103,881,915.12 and 42,238,144.72 is: 58,289,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275,452.12 : 103,881,915.12 = 42,238,144.72 : x
  2. Step 2: Convert to fraction form
    75,275,452.12/103,881,915.12 = 42,238,144.72/x
  3. Step 3: Cross multiply
    75,275,452.12x = 103,881,915.12 × 42,238,144.72
  4. Step 4: Simplify right side
    75,275,452.12x = 4,387,779,364,629,316
  5. Step 5: Solve for x
    x = 4,387,779,364,629,316/75,275,452.12
  6. Step 6: Final answer
    x = 58,289,644.78

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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.