Home / 20,012,821.95-27,620,655.99-12,671,337.54

Finding the Fourth Proportional to 20,012,821.95, 27,620,655.99 and 12,671,337.54

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Solution

The fourth proportional to 20,012,821.95, 27,620,655.99 and 12,671,337.54 is: 17,488,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012,821.95 : 27,620,655.99 = 12,671,337.54 : x
  2. Step 2: Convert to fraction form
    20,012,821.95/27,620,655.99 = 12,671,337.54/x
  3. Step 3: Cross multiply
    20,012,821.95x = 27,620,655.99 × 12,671,337.54
  4. Step 4: Simplify right side
    20,012,821.95x = 349,990,655,125,512.81
  5. Step 5: Solve for x
    x = 349,990,655,125,512.81/20,012,821.95
  6. Step 6: Final answer
    x = 17,488,321.04

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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.