Home / 28,190,765.10-42,282,000.45-7,998,048.30

Finding the Fourth Proportional to 28,190,765.10, 42,282,000.45 and 7,998,048.30

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Solution

The fourth proportional to 28,190,765.10, 42,282,000.45 and 7,998,048.30 is: 11,995,895.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,765.10 : 42,282,000.45 = 7,998,048.30 : x
  2. Step 2: Convert to fraction form
    28,190,765.10/42,282,000.45 = 7,998,048.30/x
  3. Step 3: Cross multiply
    28,190,765.10x = 42,282,000.45 × 7,998,048.30
  4. Step 4: Simplify right side
    28,190,765.10x = 338,173,481,819,721.75
  5. Step 5: Solve for x
    x = 338,173,481,819,721.75/28,190,765.10
  6. Step 6: Final answer
    x = 11,995,895.84

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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.