Home / 20,439,361.23-30,671,805.77-13,620,718.95

Finding the Fourth Proportional to 20,439,361.23, 30,671,805.77 and 13,620,718.95

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Solution

The fourth proportional to 20,439,361.23, 30,671,805.77 and 13,620,718.95 is: 20,439,584.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,361.23 : 30,671,805.77 = 13,620,718.95 : x
  2. Step 2: Convert to fraction form
    20,439,361.23/30,671,805.77 = 13,620,718.95/x
  3. Step 3: Cross multiply
    20,439,361.23x = 30,671,805.77 × 13,620,718.95
  4. Step 4: Simplify right side
    20,439,361.23x = 417,772,046,090,734.31
  5. Step 5: Solve for x
    x = 417,772,046,090,734.31/20,439,361.23
  6. Step 6: Final answer
    x = 20,439,584.27

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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.