Home / 419,535,915.14-579,071,223.42-247,827,424.88

Finding the Fourth Proportional to 419,535,915.14, 579,071,223.42 and 247,827,424.88

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Solution

The fourth proportional to 419,535,915.14, 579,071,223.42 and 247,827,424.88 is: 342,067,806.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,535,915.14 : 579,071,223.42 = 247,827,424.88 : x
  2. Step 2: Convert to fraction form
    419,535,915.14/579,071,223.42 = 247,827,424.88/x
  3. Step 3: Cross multiply
    419,535,915.14x = 579,071,223.42 × 247,827,424.88
  4. Step 4: Simplify right side
    419,535,915.14x = 143,509,730,122,289,728
  5. Step 5: Solve for x
    x = 143,509,730,122,289,728/419,535,915.14
  6. Step 6: Final answer
    x = 342,067,806.22

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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.