Home / 295,248,020.20-442,872,030.30-278,526,509.80

Finding the Fourth Proportional to 295,248,020.20, 442,872,030.30 and 278,526,509.80

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Solution

The fourth proportional to 295,248,020.20, 442,872,030.30 and 278,526,509.80 is: 417,789,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,248,020.20 : 442,872,030.30 = 278,526,509.80 : x
  2. Step 2: Convert to fraction form
    295,248,020.20/442,872,030.30 = 278,526,509.80/x
  3. Step 3: Cross multiply
    295,248,020.20x = 442,872,030.30 × 278,526,509.80
  4. Step 4: Simplify right side
    295,248,020.20x = 123,351,600,887,498,848
  5. Step 5: Solve for x
    x = 123,351,600,887,498,848/295,248,020.20
  6. Step 6: Final answer
    x = 417,789,764.70

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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.