Home / 28,481,976.20-42,724,130.70-8,287,218.20

Finding the Fourth Proportional to 28,481,976.20, 42,724,130.70 and 8,287,218.20

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Solution

The fourth proportional to 28,481,976.20, 42,724,130.70 and 8,287,218.20 is: 12,431,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481,976.20 : 42,724,130.70 = 8,287,218.20 : x
  2. Step 2: Convert to fraction form
    28,481,976.20/42,724,130.70 = 8,287,218.20/x
  3. Step 3: Cross multiply
    28,481,976.20x = 42,724,130.70 × 8,287,218.20
  4. Step 4: Simplify right side
    28,481,976.20x = 354,064,193,516,218.75
  5. Step 5: Solve for x
    x = 354,064,193,516,218.75/28,481,976.20
  6. Step 6: Final answer
    x = 12,431,166.68

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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.