Home / 84,769,480.80-127,154,221.20-30,243,634.20

Finding the Fourth Proportional to 84,769,480.80, 127,154,221.20 and 30,243,634.20

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Solution

The fourth proportional to 84,769,480.80, 127,154,221.20 and 30,243,634.20 is: 45,365,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,769,480.80 : 127,154,221.20 = 30,243,634.20 : x
  2. Step 2: Convert to fraction form
    84,769,480.80/127,154,221.20 = 30,243,634.20/x
  3. Step 3: Cross multiply
    84,769,480.80x = 127,154,221.20 × 30,243,634.20
  4. Step 4: Simplify right side
    84,769,480.80x = 3,845,605,752,958,685
  5. Step 5: Solve for x
    x = 3,845,605,752,958,685/84,769,480.80
  6. Step 6: Final answer
    x = 45,365,451.30

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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.