Home / 20,791,474.25-28,680,716.46-12,088,685.01

Finding the Fourth Proportional to 20,791,474.25, 28,680,716.46 and 12,088,685.01

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Solution

The fourth proportional to 20,791,474.25, 28,680,716.46 and 12,088,685.01 is: 16,675,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791,474.25 : 28,680,716.46 = 12,088,685.01 : x
  2. Step 2: Convert to fraction form
    20,791,474.25/28,680,716.46 = 12,088,685.01/x
  3. Step 3: Cross multiply
    20,791,474.25x = 28,680,716.46 × 12,088,685.01
  4. Step 4: Simplify right side
    20,791,474.25x = 346,712,147,146,062.25
  5. Step 5: Solve for x
    x = 346,712,147,146,062.25/20,791,474.25
  6. Step 6: Final answer
    x = 16,675,688.46

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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.