Home / 20,643,394.16-28,488,856.20-11,476,190

Finding the Fourth Proportional to 20,643,394.16, 28,488,856.20 and 11,476,190

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Solution

The fourth proportional to 20,643,394.16, 28,488,856.20 and 11,476,190 is: 15,837,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,394.16 : 28,488,856.20 = 11,476,190 : x
  2. Step 2: Convert to fraction form
    20,643,394.16/28,488,856.20 = 11,476,190/x
  3. Step 3: Cross multiply
    20,643,394.16x = 28,488,856.20 × 11,476,190
  4. Step 4: Simplify right side
    20,643,394.16x = 326,943,526,633,878
  5. Step 5: Solve for x
    x = 326,943,526,633,878/20,643,394.16
  6. Step 6: Final answer
    x = 15,837,682.70

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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.