Home / 84,240,169.40-126,360,254.10-70,635,279.80

Finding the Fourth Proportional to 84,240,169.40, 126,360,254.10 and 70,635,279.80

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Solution

The fourth proportional to 84,240,169.40, 126,360,254.10 and 70,635,279.80 is: 105,952,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,240,169.40 : 126,360,254.10 = 70,635,279.80 : x
  2. Step 2: Convert to fraction form
    84,240,169.40/126,360,254.10 = 70,635,279.80/x
  3. Step 3: Cross multiply
    84,240,169.40x = 126,360,254.10 × 70,635,279.80
  4. Step 4: Simplify right side
    84,240,169.40x = 8,925,491,903,952,596
  5. Step 5: Solve for x
    x = 8,925,491,903,952,596/84,240,169.40
  6. Step 6: Final answer
    x = 105,952,919.70

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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.