Home / 20,328,998.32-28,067,146.68-12,602,298.16

Finding the Fourth Proportional to 20,328,998.32, 28,067,146.68 and 12,602,298.16

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Solution

The fourth proportional to 20,328,998.32, 28,067,146.68 and 12,602,298.16 is: 17,399,310.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328,998.32 : 28,067,146.68 = 12,602,298.16 : x
  2. Step 2: Convert to fraction form
    20,328,998.32/28,067,146.68 = 12,602,298.16/x
  3. Step 3: Cross multiply
    20,328,998.32x = 28,067,146.68 × 12,602,298.16
  4. Step 4: Simplify right side
    20,328,998.32x = 353,710,550,961,814.12
  5. Step 5: Solve for x
    x = 353,710,550,961,814.12/20,328,998.32
  6. Step 6: Final answer
    x = 17,399,310.35

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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.