Home / 57,192,915.85-78,926,784.84-31,087,417.55

Finding the Fourth Proportional to 57,192,915.85, 78,926,784.84 and 31,087,417.55

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Solution

The fourth proportional to 57,192,915.85, 78,926,784.84 and 31,087,417.55 is: 42,900,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,192,915.85 : 78,926,784.84 = 31,087,417.55 : x
  2. Step 2: Convert to fraction form
    57,192,915.85/78,926,784.84 = 31,087,417.55/x
  3. Step 3: Cross multiply
    57,192,915.85x = 78,926,784.84 × 31,087,417.55
  4. Step 4: Simplify right side
    57,192,915.85x = 2,453,629,915,805,456.50
  5. Step 5: Solve for x
    x = 2,453,629,915,805,456.50/57,192,915.85
  6. Step 6: Final answer
    x = 42,900,941.13

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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.