Home / 115,101,221.40-172,651,832.10-100,320,600.60

Finding the Fourth Proportional to 115,101,221.40, 172,651,832.10 and 100,320,600.60

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Solution

The fourth proportional to 115,101,221.40, 172,651,832.10 and 100,320,600.60 is: 150,480,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,101,221.40 : 172,651,832.10 = 100,320,600.60 : x
  2. Step 2: Convert to fraction form
    115,101,221.40/172,651,832.10 = 100,320,600.60/x
  3. Step 3: Cross multiply
    115,101,221.40x = 172,651,832.10 × 100,320,600.60
  4. Step 4: Simplify right side
    115,101,221.40x = 17,320,535,490,962,358
  5. Step 5: Solve for x
    x = 17,320,535,490,962,358/115,101,221.40
  6. Step 6: Final answer
    x = 150,480,900.90

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1.5x scale

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.