Home / 38,561,811.66-53,215,401.14-20,920,713.30

Finding the Fourth Proportional to 38,561,811.66, 53,215,401.14 and 20,920,713.30

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Solution

The fourth proportional to 38,561,811.66, 53,215,401.14 and 20,920,713.30 is: 28,870,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561,811.66 : 53,215,401.14 = 20,920,713.30 : x
  2. Step 2: Convert to fraction form
    38,561,811.66/53,215,401.14 = 20,920,713.30/x
  3. Step 3: Cross multiply
    38,561,811.66x = 53,215,401.14 × 20,920,713.30
  4. Step 4: Simplify right side
    38,561,811.66x = 1,113,304,150,239,964.25
  5. Step 5: Solve for x
    x = 1,113,304,150,239,964.25/38,561,811.66
  6. Step 6: Final answer
    x = 28,870,639.17

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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.