Home / 12,842,722.20-19,261,135.34-7,656,799.08

Finding the Fourth Proportional to 12,842,722.20, 19,261,135.34 and 7,656,799.08

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Solution

The fourth proportional to 12,842,722.20, 19,261,135.34 and 7,656,799.08 is: 11,483,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842,722.20 : 19,261,135.34 = 7,656,799.08 : x
  2. Step 2: Convert to fraction form
    12,842,722.20/19,261,135.34 = 7,656,799.08/x
  3. Step 3: Cross multiply
    12,842,722.20x = 19,261,135.34 × 7,656,799.08
  4. Step 4: Simplify right side
    12,842,722.20x = 147,478,643,351,067.50
  5. Step 5: Solve for x
    x = 147,478,643,351,067.50/12,842,722.20
  6. Step 6: Final answer
    x = 11,483,441.05

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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.