Home / 85,192,536.11-127,788,803.43-20,496,340.42

Finding the Fourth Proportional to 85,192,536.11, 127,788,803.43 and 20,496,340.42

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Solution

The fourth proportional to 85,192,536.11, 127,788,803.43 and 20,496,340.42 is: 30,744,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,192,536.11 : 127,788,803.43 = 20,496,340.42 : x
  2. Step 2: Convert to fraction form
    85,192,536.11/127,788,803.43 = 20,496,340.42/x
  3. Step 3: Cross multiply
    85,192,536.11x = 127,788,803.43 × 20,496,340.42
  4. Step 4: Simplify right side
    85,192,536.11x = 2,619,202,816,646,272
  5. Step 5: Solve for x
    x = 2,619,202,816,646,272/85,192,536.11
  6. Step 6: Final answer
    x = 30,744,510.45

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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.