Home / 12,121,799.20-16,727,825.04-6,614,991.52

Finding the Fourth Proportional to 12,121,799.20, 16,727,825.04 and 6,614,991.52

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Solution

The fourth proportional to 12,121,799.20, 16,727,825.04 and 6,614,991.52 is: 9,128,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121,799.20 : 16,727,825.04 = 6,614,991.52 : x
  2. Step 2: Convert to fraction form
    12,121,799.20/16,727,825.04 = 6,614,991.52/x
  3. Step 3: Cross multiply
    12,121,799.20x = 16,727,825.04 × 6,614,991.52
  4. Step 4: Simplify right side
    12,121,799.20x = 110,654,420,787,643.64
  5. Step 5: Solve for x
    x = 110,654,420,787,643.64/12,121,799.20
  6. Step 6: Final answer
    x = 9,128,547.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.