Home / 20,426,656.88-30,632,013.66-8,915,644.82

Finding the Fourth Proportional to 20,426,656.88, 30,632,013.66 and 8,915,644.82

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Solution

The fourth proportional to 20,426,656.88, 30,632,013.66 and 8,915,644.82 is: 13,369,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426,656.88 : 30,632,013.66 = 8,915,644.82 : x
  2. Step 2: Convert to fraction form
    20,426,656.88/30,632,013.66 = 8,915,644.82/x
  3. Step 3: Cross multiply
    20,426,656.88x = 30,632,013.66 × 8,915,644.82
  4. Step 4: Simplify right side
    20,426,656.88x = 273,104,153,913,948.25
  5. Step 5: Solve for x
    x = 273,104,153,913,948.25/20,426,656.88
  6. Step 6: Final answer
    x = 13,369,987.83

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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.