Home / 40,159,418.10-55,420,594.20-21,824,718.18

Finding the Fourth Proportional to 40,159,418.10, 55,420,594.20 and 21,824,718.18

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Solution

The fourth proportional to 40,159,418.10, 55,420,594.20 and 21,824,718.18 is: 30,118,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,159,418.10 : 55,420,594.20 = 21,824,718.18 : x
  2. Step 2: Convert to fraction form
    40,159,418.10/55,420,594.20 = 21,824,718.18/x
  3. Step 3: Cross multiply
    40,159,418.10x = 55,420,594.20 × 21,824,718.18
  4. Step 4: Simplify right side
    40,159,418.10x = 1,209,538,849,783,142.50
  5. Step 5: Solve for x
    x = 1,209,538,849,783,142.50/40,159,418.10
  6. Step 6: Final answer
    x = 30,118,435.65

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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.