Home / 125,172,031.20-187,758,046.80-79,255,528.80

Finding the Fourth Proportional to 125,172,031.20, 187,758,046.80 and 79,255,528.80

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Solution

The fourth proportional to 125,172,031.20, 187,758,046.80 and 79,255,528.80 is: 118,883,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,172,031.20 : 187,758,046.80 = 79,255,528.80 : x
  2. Step 2: Convert to fraction form
    125,172,031.20/187,758,046.80 = 79,255,528.80/x
  3. Step 3: Cross multiply
    125,172,031.20x = 187,758,046.80 × 79,255,528.80
  4. Step 4: Simplify right side
    125,172,031.20x = 14,880,863,285,589,148
  5. Step 5: Solve for x
    x = 14,880,863,285,589,148/125,172,031.20
  6. Step 6: Final answer
    x = 118,883,293.20

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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.