Home / 84,081,036.20-126,121,554.30-70,476,146.60

Finding the Fourth Proportional to 84,081,036.20, 126,121,554.30 and 70,476,146.60

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Solution

The fourth proportional to 84,081,036.20, 126,121,554.30 and 70,476,146.60 is: 105,714,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,081,036.20 : 126,121,554.30 = 70,476,146.60 : x
  2. Step 2: Convert to fraction form
    84,081,036.20/126,121,554.30 = 70,476,146.60/x
  3. Step 3: Cross multiply
    84,081,036.20x = 126,121,554.30 × 70,476,146.60
  4. Step 4: Simplify right side
    84,081,036.20x = 8,888,561,150,266,659
  5. Step 5: Solve for x
    x = 8,888,561,150,266,659/84,081,036.20
  6. Step 6: Final answer
    x = 105,714,219.90

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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.