Home / 20,710,568.94-28,580,616.63-11,543,014.86

Finding the Fourth Proportional to 20,710,568.94, 28,580,616.63 and 11,543,014.86

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Solution

The fourth proportional to 20,710,568.94, 28,580,616.63 and 11,543,014.86 is: 15,929,378.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,568.94 : 28,580,616.63 = 11,543,014.86 : x
  2. Step 2: Convert to fraction form
    20,710,568.94/28,580,616.63 = 11,543,014.86/x
  3. Step 3: Cross multiply
    20,710,568.94x = 28,580,616.63 × 11,543,014.86
  4. Step 4: Simplify right side
    20,710,568.94x = 329,906,482,468,053.06
  5. Step 5: Solve for x
    x = 329,906,482,468,053.06/20,710,568.94
  6. Step 6: Final answer
    x = 15,929,378.06

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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.