Home / 510,174,615.20-765,261,922.80-408,137,943.20

Finding the Fourth Proportional to 510,174,615.20, 765,261,922.80 and 408,137,943.20

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Solution

The fourth proportional to 510,174,615.20, 765,261,922.80 and 408,137,943.20 is: 612,206,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,174,615.20 : 765,261,922.80 = 408,137,943.20 : x
  2. Step 2: Convert to fraction form
    510,174,615.20/765,261,922.80 = 408,137,943.20/x
  3. Step 3: Cross multiply
    510,174,615.20x = 765,261,922.80 × 408,137,943.20
  4. Step 4: Simplify right side
    510,174,615.20x = 312,332,427,180,869,184
  5. Step 5: Solve for x
    x = 312,332,427,180,869,184/510,174,615.20
  6. Step 6: Final answer
    x = 612,206,914.80

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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.