Home / 510,862,639.80-766,219,310.10-147,319,087.80

Finding the Fourth Proportional to 510,862,639.80, 766,219,310.10 and 147,319,087.80

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Solution

The fourth proportional to 510,862,639.80, 766,219,310.10 and 147,319,087.80 is: 220,957,104.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,862,639.80 : 766,219,310.10 = 147,319,087.80 : x
  2. Step 2: Convert to fraction form
    510,862,639.80/766,219,310.10 = 147,319,087.80/x
  3. Step 3: Cross multiply
    510,862,639.80x = 766,219,310.10 × 147,319,087.80
  4. Step 4: Simplify right side
    510,862,639.80x = 112,878,729,818,677,344
  5. Step 5: Solve for x
    x = 112,878,729,818,677,344/510,862,639.80
  6. Step 6: Final answer
    x = 220,957,104.76

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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.