Home / 217,261,915.57-299,812,316.91-123,182,391.56

Finding the Fourth Proportional to 217,261,915.57, 299,812,316.91 and 123,182,391.56

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Solution

The fourth proportional to 217,261,915.57, 299,812,316.91 and 123,182,391.56 is: 169,986,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,261,915.57 : 299,812,316.91 = 123,182,391.56 : x
  2. Step 2: Convert to fraction form
    217,261,915.57/299,812,316.91 = 123,182,391.56/x
  3. Step 3: Cross multiply
    217,261,915.57x = 299,812,316.91 × 123,182,391.56
  4. Step 4: Simplify right side
    217,261,915.57x = 36,931,598,216,118,432
  5. Step 5: Solve for x
    x = 36,931,598,216,118,432/217,261,915.57
  6. Step 6: Final answer
    x = 169,986,525.80

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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.