Home / 20,474,089.40-28,241,266.80-15,568,557.14

Finding the Fourth Proportional to 20,474,089.40, 28,241,266.80 and 15,568,557.14

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Solution

The fourth proportional to 20,474,089.40, 28,241,266.80 and 15,568,557.14 is: 21,474,741.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474,089.40 : 28,241,266.80 = 15,568,557.14 : x
  2. Step 2: Convert to fraction form
    20,474,089.40/28,241,266.80 = 15,568,557.14/x
  3. Step 3: Cross multiply
    20,474,089.40x = 28,241,266.80 × 15,568,557.14
  4. Step 4: Simplify right side
    20,474,089.40x = 439,675,775,881,785
  5. Step 5: Solve for x
    x = 439,675,775,881,785/20,474,089.40
  6. Step 6: Final answer
    x = 21,474,741.43

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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.