Home / 20,894,111.46-28,833,873.75-11,726,754.21

Finding the Fourth Proportional to 20,894,111.46, 28,833,873.75 and 11,726,754.21

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Solution

The fourth proportional to 20,894,111.46, 28,833,873.75 and 11,726,754.21 is: 16,182,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894,111.46 : 28,833,873.75 = 11,726,754.21 : x
  2. Step 2: Convert to fraction form
    20,894,111.46/28,833,873.75 = 11,726,754.21/x
  3. Step 3: Cross multiply
    20,894,111.46x = 28,833,873.75 × 11,726,754.21
  4. Step 4: Simplify right side
    20,894,111.46x = 338,127,750,388,421
  5. Step 5: Solve for x
    x = 338,127,750,388,421/20,894,111.46
  6. Step 6: Final answer
    x = 16,182,920.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.