Home / 261,469,525.80-392,256,008.74-74,725,144.21

Finding the Fourth Proportional to 261,469,525.80, 392,256,008.74 and 74,725,144.21

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Solution

The fourth proportional to 261,469,525.80, 392,256,008.74 and 74,725,144.21 is: 112,102,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,469,525.80 : 392,256,008.74 = 74,725,144.21 : x
  2. Step 2: Convert to fraction form
    261,469,525.80/392,256,008.74 = 74,725,144.21/x
  3. Step 3: Cross multiply
    261,469,525.80x = 392,256,008.74 × 74,725,144.21
  4. Step 4: Simplify right side
    261,469,525.80x = 29,311,386,820,919,248
  5. Step 5: Solve for x
    x = 29,311,386,820,919,248/261,469,525.80
  6. Step 6: Final answer
    x = 112,102,497.34

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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.