Home / 28,339,620.30-42,512,881.05-10,145,724.30

Finding the Fourth Proportional to 28,339,620.30, 42,512,881.05 and 10,145,724.30

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Solution

The fourth proportional to 28,339,620.30, 42,512,881.05 and 10,145,724.30 is: 15,219,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339,620.30 : 42,512,881.05 = 10,145,724.30 : x
  2. Step 2: Convert to fraction form
    28,339,620.30/42,512,881.05 = 10,145,724.30/x
  3. Step 3: Cross multiply
    28,339,620.30x = 42,512,881.05 × 10,145,724.30
  4. Step 4: Simplify right side
    28,339,620.30x = 431,323,970,331,994.50
  5. Step 5: Solve for x
    x = 431,323,970,331,994.50/28,339,620.30
  6. Step 6: Final answer
    x = 15,219,821.78

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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.