Home / 5,172,765.12-7,759,147.80-1,578,550.86

Finding the Fourth Proportional to 5,172,765.12, 7,759,147.80 and 1,578,550.86

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Solution

The fourth proportional to 5,172,765.12, 7,759,147.80 and 1,578,550.86 is: 2,367,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,765.12 : 7,759,147.80 = 1,578,550.86 : x
  2. Step 2: Convert to fraction form
    5,172,765.12/7,759,147.80 = 1,578,550.86/x
  3. Step 3: Cross multiply
    5,172,765.12x = 7,759,147.80 × 1,578,550.86
  4. Step 4: Simplify right side
    5,172,765.12x = 12,248,209,432,557.11
  5. Step 5: Solve for x
    x = 12,248,209,432,557.11/5,172,765.12
  6. Step 6: Final answer
    x = 2,367,826.33

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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.