Home / 38,561,811.54-53,215,400.97-20,920,713.17

Finding the Fourth Proportional to 38,561,811.54, 53,215,400.97 and 20,920,713.17

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Solution

The fourth proportional to 38,561,811.54, 53,215,400.97 and 20,920,713.17 is: 28,870,639.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561,811.54 : 53,215,400.97 = 20,920,713.17 : x
  2. Step 2: Convert to fraction form
    38,561,811.54/53,215,400.97 = 20,920,713.17/x
  3. Step 3: Cross multiply
    38,561,811.54x = 53,215,400.97 × 20,920,713.17
  4. Step 4: Simplify right side
    38,561,811.54x = 1,113,304,139,919,909.88
  5. Step 5: Solve for x
    x = 1,113,304,139,919,909.88/38,561,811.54
  6. Step 6: Final answer
    x = 28,870,639.00

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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.