Home / 315,524,761.70-473,287,142.55-145,655,449.70

Finding the Fourth Proportional to 315,524,761.70, 473,287,142.55 and 145,655,449.70

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Solution

The fourth proportional to 315,524,761.70, 473,287,142.55 and 145,655,449.70 is: 218,483,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,524,761.70 : 473,287,142.55 = 145,655,449.70 : x
  2. Step 2: Convert to fraction form
    315,524,761.70/473,287,142.55 = 145,655,449.70/x
  3. Step 3: Cross multiply
    315,524,761.70x = 473,287,142.55 × 145,655,449.70
  4. Step 4: Simplify right side
    315,524,761.70x = 68,936,851,585,348,248
  5. Step 5: Solve for x
    x = 68,936,851,585,348,248/315,524,761.70
  6. Step 6: Final answer
    x = 218,483,174.55

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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.