Home / 19,555,376.91-26,987,784.14-12,928,451.66

Finding the Fourth Proportional to 19,555,376.91, 26,987,784.14 and 12,928,451.66

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Solution

The fourth proportional to 19,555,376.91, 26,987,784.14 and 12,928,451.66 is: 17,842,165.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555,376.91 : 26,987,784.14 = 12,928,451.66 : x
  2. Step 2: Convert to fraction form
    19,555,376.91/26,987,784.14 = 12,928,451.66/x
  3. Step 3: Cross multiply
    19,555,376.91x = 26,987,784.14 × 12,928,451.66
  4. Step 4: Simplify right side
    19,555,376.91x = 348,910,262,616,729.81
  5. Step 5: Solve for x
    x = 348,910,262,616,729.81/19,555,376.91
  6. Step 6: Final answer
    x = 17,842,165.06

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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.