Home / 247,805,915.76-342,321,859.80-198,573,338.16

Finding the Fourth Proportional to 247,805,915.76, 342,321,859.80 and 198,573,338.16

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Solution

The fourth proportional to 247,805,915.76, 342,321,859.80 and 198,573,338.16 is: 274,311,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,805,915.76 : 342,321,859.80 = 198,573,338.16 : x
  2. Step 2: Convert to fraction form
    247,805,915.76/342,321,859.80 = 198,573,338.16/x
  3. Step 3: Cross multiply
    247,805,915.76x = 342,321,859.80 × 198,573,338.16
  4. Step 4: Simplify right side
    247,805,915.76x = 67,975,994,425,625,512
  5. Step 5: Solve for x
    x = 67,975,994,425,625,512/247,805,915.76
  6. Step 6: Final answer
    x = 274,311,427.22

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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.