Home / 20,643,392.16-28,488,853.44-11,476,188

Finding the Fourth Proportional to 20,643,392.16, 28,488,853.44 and 11,476,188

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Solution

The fourth proportional to 20,643,392.16, 28,488,853.44 and 11,476,188 is: 15,837,679.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,392.16 : 28,488,853.44 = 11,476,188 : x
  2. Step 2: Convert to fraction form
    20,643,392.16/28,488,853.44 = 11,476,188/x
  3. Step 3: Cross multiply
    20,643,392.16x = 28,488,853.44 × 11,476,188
  4. Step 4: Simplify right side
    20,643,392.16x = 326,943,437,981,886.75
  5. Step 5: Solve for x
    x = 326,943,437,981,886.75/20,643,392.16
  6. Step 6: Final answer
    x = 15,837,679.94

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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.