Home / 31,531,585.82-43,535,104.02-20,395,073.60

Finding the Fourth Proportional to 31,531,585.82, 43,535,104.02 and 20,395,073.60

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Solution

The fourth proportional to 31,531,585.82, 43,535,104.02 and 20,395,073.60 is: 28,159,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531,585.82 : 43,535,104.02 = 20,395,073.60 : x
  2. Step 2: Convert to fraction form
    31,531,585.82/43,535,104.02 = 20,395,073.60/x
  3. Step 3: Cross multiply
    31,531,585.82x = 43,535,104.02 × 20,395,073.60
  4. Step 4: Simplify right side
    31,531,585.82x = 887,901,650,671,556
  5. Step 5: Solve for x
    x = 887,901,650,671,556/31,531,585.82
  6. Step 6: Final answer
    x = 28,159,118.15

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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.