Home / 161,720,855.20-242,581,282.80-157,469,327.20

Finding the Fourth Proportional to 161,720,855.20, 242,581,282.80 and 157,469,327.20

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Solution

The fourth proportional to 161,720,855.20, 242,581,282.80 and 157,469,327.20 is: 236,203,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,720,855.20 : 242,581,282.80 = 157,469,327.20 : x
  2. Step 2: Convert to fraction form
    161,720,855.20/242,581,282.80 = 157,469,327.20/x
  3. Step 3: Cross multiply
    161,720,855.20x = 242,581,282.80 × 157,469,327.20
  4. Step 4: Simplify right side
    161,720,855.20x = 38,199,111,393,828,928
  5. Step 5: Solve for x
    x = 38,199,111,393,828,928/161,720,855.20
  6. Step 6: Final answer
    x = 236,203,990.80

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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.