Home / 20,105,704.80-30,158,557.20-11,602,648.80

Finding the Fourth Proportional to 20,105,704.80, 30,158,557.20 and 11,602,648.80

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Solution

The fourth proportional to 20,105,704.80, 30,158,557.20 and 11,602,648.80 is: 17,403,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105,704.80 : 30,158,557.20 = 11,602,648.80 : x
  2. Step 2: Convert to fraction form
    20,105,704.80/30,158,557.20 = 11,602,648.80/x
  3. Step 3: Cross multiply
    20,105,704.80x = 30,158,557.20 × 11,602,648.80
  4. Step 4: Simplify right side
    20,105,704.80x = 349,919,147,506,311.38
  5. Step 5: Solve for x
    x = 349,919,147,506,311.38/20,105,704.80
  6. Step 6: Final answer
    x = 17,403,973.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.