Home / 171,921,412.20-257,882,118.30-161,835,421.80

Finding the Fourth Proportional to 171,921,412.20, 257,882,118.30 and 161,835,421.80

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Solution

The fourth proportional to 171,921,412.20, 257,882,118.30 and 161,835,421.80 is: 242,753,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,921,412.20 : 257,882,118.30 = 161,835,421.80 : x
  2. Step 2: Convert to fraction form
    171,921,412.20/257,882,118.30 = 161,835,421.80/x
  3. Step 3: Cross multiply
    171,921,412.20x = 257,882,118.30 × 161,835,421.80
  4. Step 4: Simplify right side
    171,921,412.20x = 41,734,461,389,758,000
  5. Step 5: Solve for x
    x = 41,734,461,389,758,000/171,921,412.20
  6. Step 6: Final answer
    x = 242,753,132.70

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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.