Home / 479,959,243.79-719,938,867.46-134,912,870.78

Finding the Fourth Proportional to 479,959,243.79, 719,938,867.46 and 134,912,870.78

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Solution

The fourth proportional to 479,959,243.79, 719,938,867.46 and 134,912,870.78 is: 202,369,306.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,959,243.79 : 719,938,867.46 = 134,912,870.78 : x
  2. Step 2: Convert to fraction form
    479,959,243.79/719,938,867.46 = 134,912,870.78/x
  3. Step 3: Cross multiply
    479,959,243.79x = 719,938,867.46 × 134,912,870.78
  4. Step 4: Simplify right side
    479,959,243.79x = 97,129,019,390,856,272
  5. Step 5: Solve for x
    x = 97,129,019,390,856,272/479,959,243.79
  6. Step 6: Final answer
    x = 202,369,306.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.