Home / 20,744,142.40-31,116,213.60-7,280,970.40

Finding the Fourth Proportional to 20,744,142.40, 31,116,213.60 and 7,280,970.40

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Solution

The fourth proportional to 20,744,142.40, 31,116,213.60 and 7,280,970.40 is: 10,921,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744,142.40 : 31,116,213.60 = 7,280,970.40 : x
  2. Step 2: Convert to fraction form
    20,744,142.40/31,116,213.60 = 7,280,970.40/x
  3. Step 3: Cross multiply
    20,744,142.40x = 31,116,213.60 × 7,280,970.40
  4. Step 4: Simplify right side
    20,744,142.40x = 226,556,230,181,677.47
  5. Step 5: Solve for x
    x = 226,556,230,181,677.47/20,744,142.40
  6. Step 6: Final answer
    x = 10,921,455.60

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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.