Home / 126,333,003.60-189,499,505.40-77,227,855.20

Finding the Fourth Proportional to 126,333,003.60, 189,499,505.40 and 77,227,855.20

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Solution

The fourth proportional to 126,333,003.60, 189,499,505.40 and 77,227,855.20 is: 115,841,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,333,003.60 : 189,499,505.40 = 77,227,855.20 : x
  2. Step 2: Convert to fraction form
    126,333,003.60/189,499,505.40 = 77,227,855.20/x
  3. Step 3: Cross multiply
    126,333,003.60x = 189,499,505.40 × 77,227,855.20
  4. Step 4: Simplify right side
    126,333,003.60x = 14,634,640,363,502,820
  5. Step 5: Solve for x
    x = 14,634,640,363,502,820/126,333,003.60
  6. Step 6: Final answer
    x = 115,841,782.80

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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.