Home / 168,138,763.47-252,218,785.37-71,076,377.07

Finding the Fourth Proportional to 168,138,763.47, 252,218,785.37 and 71,076,377.07

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Solution

The fourth proportional to 168,138,763.47, 252,218,785.37 and 71,076,377.07 is: 106,619,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,138,763.47 : 252,218,785.37 = 71,076,377.07 : x
  2. Step 2: Convert to fraction form
    168,138,763.47/252,218,785.37 = 71,076,377.07/x
  3. Step 3: Cross multiply
    168,138,763.47x = 252,218,785.37 × 71,076,377.07
  4. Step 4: Simplify right side
    168,138,763.47x = 17,926,797,492,740,136
  5. Step 5: Solve for x
    x = 17,926,797,492,740,136/168,138,763.47
  6. Step 6: Final answer
    x = 106,619,063.46

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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.