Home / 20,328,992.32-28,067,138.40-12,602,292.16

Finding the Fourth Proportional to 20,328,992.32, 28,067,138.40 and 12,602,292.16

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Solution

The fourth proportional to 20,328,992.32, 28,067,138.40 and 12,602,292.16 is: 17,399,302.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328,992.32 : 28,067,138.40 = 12,602,292.16 : x
  2. Step 2: Convert to fraction form
    20,328,992.32/28,067,138.40 = 12,602,292.16/x
  3. Step 3: Cross multiply
    20,328,992.32x = 28,067,138.40 × 12,602,292.16
  4. Step 4: Simplify right side
    20,328,992.32x = 353,710,278,211,954.94
  5. Step 5: Solve for x
    x = 353,710,278,211,954.94/20,328,992.32
  6. Step 6: Final answer
    x = 17,399,302.07

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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.