Home / 55,390,912.59-76,440,986.79-30,612,705.60

Finding the Fourth Proportional to 55,390,912.59, 76,440,986.79 and 30,612,705.60

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Solution

The fourth proportional to 55,390,912.59, 76,440,986.79 and 30,612,705.60 is: 42,246,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,390,912.59 : 76,440,986.79 = 30,612,705.60 : x
  2. Step 2: Convert to fraction form
    55,390,912.59/76,440,986.79 = 30,612,705.60/x
  3. Step 3: Cross multiply
    55,390,912.59x = 76,440,986.79 × 30,612,705.60
  4. Step 4: Simplify right side
    55,390,912.59x = 2,340,065,424,375,759.50
  5. Step 5: Solve for x
    x = 2,340,065,424,375,759.50/55,390,912.59
  6. Step 6: Final answer
    x = 42,246,377.88

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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.