Home / 261,930,954.60-392,952,419.10-80,196,503.40

Finding the Fourth Proportional to 261,930,954.60, 392,952,419.10 and 80,196,503.40

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Solution

The fourth proportional to 261,930,954.60, 392,952,419.10 and 80,196,503.40 is: 120,311,896.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,930,954.60 : 392,952,419.10 = 80,196,503.40 : x
  2. Step 2: Convert to fraction form
    261,930,954.60/392,952,419.10 = 80,196,503.40/x
  3. Step 3: Cross multiply
    261,930,954.60x = 392,952,419.10 × 80,196,503.40
  4. Step 4: Simplify right side
    261,930,954.60x = 31,513,410,014,391,380
  5. Step 5: Solve for x
    x = 31,513,410,014,391,380/261,930,954.60
  6. Step 6: Final answer
    x = 120,311,896.94

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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.