Home / 168,785,820.79-253,177,308.95-131,928,712.80

Finding the Fourth Proportional to 168,785,820.79, 253,177,308.95 and 131,928,712.80

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Solution

The fourth proportional to 168,785,820.79, 253,177,308.95 and 131,928,712.80 is: 197,891,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,785,820.79 : 253,177,308.95 = 131,928,712.80 : x
  2. Step 2: Convert to fraction form
    168,785,820.79/253,177,308.95 = 131,928,712.80/x
  3. Step 3: Cross multiply
    168,785,820.79x = 253,177,308.95 × 131,928,712.80
  4. Step 4: Simplify right side
    168,785,820.79x = 33,401,356,478,827,092
  5. Step 5: Solve for x
    x = 33,401,356,478,827,092/168,785,820.79
  6. Step 6: Final answer
    x = 197,891,957.52

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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.