Home / 20,909,910.30-31,366,420.65-7,444,988.70

Finding the Fourth Proportional to 20,909,910.30, 31,366,420.65 and 7,444,988.70

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Solution

The fourth proportional to 20,909,910.30, 31,366,420.65 and 7,444,988.70 is: 11,168,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909,910.30 : 31,366,420.65 = 7,444,988.70 : x
  2. Step 2: Convert to fraction form
    20,909,910.30/31,366,420.65 = 7,444,988.70/x
  3. Step 3: Cross multiply
    20,909,910.30x = 31,366,420.65 × 7,444,988.70
  4. Step 4: Simplify right side
    20,909,910.30x = 233,522,647,298,696.66
  5. Step 5: Solve for x
    x = 233,522,647,298,696.66/20,909,910.30
  6. Step 6: Final answer
    x = 11,168,036.78

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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.