Home / 40,012,536.20-55,217,354.10-21,677,821.16

Finding the Fourth Proportional to 40,012,536.20, 55,217,354.10 and 21,677,821.16

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Solution

The fourth proportional to 40,012,536.20, 55,217,354.10 and 21,677,821.16 is: 29,915,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,012,536.20 : 55,217,354.10 = 21,677,821.16 : x
  2. Step 2: Convert to fraction form
    40,012,536.20/55,217,354.10 = 21,677,821.16/x
  3. Step 3: Cross multiply
    40,012,536.20x = 55,217,354.10 × 21,677,821.16
  4. Step 4: Simplify right side
    40,012,536.20x = 1,196,991,927,108,192.75
  5. Step 5: Solve for x
    x = 1,196,991,927,108,192.75/40,012,536.20
  6. Step 6: Final answer
    x = 29,915,422.53

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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.