Home / 21,370,326.90-32,080,373.55-13,828,643.70

Finding the Fourth Proportional to 21,370,326.90, 32,080,373.55 and 13,828,643.70

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Solution

The fourth proportional to 21,370,326.90, 32,080,373.55 and 13,828,643.70 is: 20,759,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370,326.90 : 32,080,373.55 = 13,828,643.70 : x
  2. Step 2: Convert to fraction form
    21,370,326.90/32,080,373.55 = 13,828,643.70/x
  3. Step 3: Cross multiply
    21,370,326.90x = 32,080,373.55 × 13,828,643.70
  4. Step 4: Simplify right side
    21,370,326.90x = 443,628,055,585,854.12
  5. Step 5: Solve for x
    x = 443,628,055,585,854.12/21,370,326.90
  6. Step 6: Final answer
    x = 20,759,067.36

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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.