Home / 20,566,659,862.64-28,385,093,054.04-12,542,655,540.08

Finding the Fourth Proportional to 20,566,659,862.64, 28,385,093,054.04 and 12,542,655,540.08

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Solution

The fourth proportional to 20,566,659,862.64, 28,385,093,054.04 and 12,542,655,540.08 is: 17,310,756,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566,659,862.64 : 28,385,093,054.04 = 12,542,655,540.08 : x
  2. Step 2: Convert to fraction form
    20,566,659,862.64/28,385,093,054.04 = 12,542,655,540.08/x
  3. Step 3: Cross multiply
    20,566,659,862.64x = 28,385,093,054.04 × 12,542,655,540.08
  4. Step 4: Simplify right side
    20,566,659,862.64x = 356,024,444,649,941,172,224
  5. Step 5: Solve for x
    x = 356,024,444,649,941,172,224/20,566,659,862.64
  6. Step 6: Final answer
    x = 17,310,756,682.31

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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.