Home / 161,818,873.20-242,728,309.80-159,131,487.60

Finding the Fourth Proportional to 161,818,873.20, 242,728,309.80 and 159,131,487.60

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Solution

The fourth proportional to 161,818,873.20, 242,728,309.80 and 159,131,487.60 is: 238,697,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,818,873.20 : 242,728,309.80 = 159,131,487.60 : x
  2. Step 2: Convert to fraction form
    161,818,873.20/242,728,309.80 = 159,131,487.60/x
  3. Step 3: Cross multiply
    161,818,873.20x = 242,728,309.80 × 159,131,487.60
  4. Step 4: Simplify right side
    161,818,873.20x = 38,625,717,021,107,656
  5. Step 5: Solve for x
    x = 38,625,717,021,107,656/161,818,873.20
  6. Step 6: Final answer
    x = 238,697,231.40

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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.