Home / 20,678,926.52-31,004,025.75-9,158,115.80

Finding the Fourth Proportional to 20,678,926.52, 31,004,025.75 and 9,158,115.80

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Solution

The fourth proportional to 20,678,926.52, 31,004,025.75 and 9,158,115.80 is: 13,730,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,926.52 : 31,004,025.75 = 9,158,115.80 : x
  2. Step 2: Convert to fraction form
    20,678,926.52/31,004,025.75 = 9,158,115.80/x
  3. Step 3: Cross multiply
    20,678,926.52x = 31,004,025.75 × 9,158,115.80
  4. Step 4: Simplify right side
    20,678,926.52x = 283,938,458,084,681.88
  5. Step 5: Solve for x
    x = 283,938,458,084,681.88/20,678,926.52
  6. Step 6: Final answer
    x = 13,730,812.27

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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.