Home / 216,968,753.42-299,419,306.08-127,680,437.53

Finding the Fourth Proportional to 216,968,753.42, 299,419,306.08 and 127,680,437.53

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Solution

The fourth proportional to 216,968,753.42, 299,419,306.08 and 127,680,437.53 is: 176,200,431.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,968,753.42 : 299,419,306.08 = 127,680,437.53 : x
  2. Step 2: Convert to fraction form
    216,968,753.42/299,419,306.08 = 127,680,437.53/x
  3. Step 3: Cross multiply
    216,968,753.42x = 299,419,306.08 × 127,680,437.53
  4. Step 4: Simplify right side
    216,968,753.42x = 38,229,988,005,120,136
  5. Step 5: Solve for x
    x = 38,229,988,005,120,136/216,968,753.42
  6. Step 6: Final answer
    x = 176,200,431.64

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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.