Home / 31,612,884.12-43,609,802.22-21,159,337.32

Finding the Fourth Proportional to 31,612,884.12, 43,609,802.22 and 21,159,337.32

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Solution

The fourth proportional to 31,612,884.12, 43,609,802.22 and 21,159,337.32 is: 29,189,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,612,884.12 : 43,609,802.22 = 21,159,337.32 : x
  2. Step 2: Convert to fraction form
    31,612,884.12/43,609,802.22 = 21,159,337.32/x
  3. Step 3: Cross multiply
    31,612,884.12x = 43,609,802.22 × 21,159,337.32
  4. Step 4: Simplify right side
    31,612,884.12x = 922,754,515,631,464.88
  5. Step 5: Solve for x
    x = 922,754,515,631,464.88/31,612,884.12
  6. Step 6: Final answer
    x = 29,189,191.09

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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.