Home / 18,680,416.91-25,779,615.38-10,839,338.47

Finding the Fourth Proportional to 18,680,416.91, 25,779,615.38 and 10,839,338.47

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Solution

The fourth proportional to 18,680,416.91, 25,779,615.38 and 10,839,338.47 is: 14,958,658.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680,416.91 : 25,779,615.38 = 10,839,338.47 : x
  2. Step 2: Convert to fraction form
    18,680,416.91/25,779,615.38 = 10,839,338.47/x
  3. Step 3: Cross multiply
    18,680,416.91x = 25,779,615.38 × 10,839,338.47
  4. Step 4: Simplify right side
    18,680,416.91x = 279,433,976,692,886.97
  5. Step 5: Solve for x
    x = 279,433,976,692,886.97/18,680,416.91
  6. Step 6: Final answer
    x = 14,958,658.48

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1.5x scale

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.