Home / 20,777,323.30-31,165,984.95-13,124,572.90

Finding the Fourth Proportional to 20,777,323.30, 31,165,984.95 and 13,124,572.90

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Solution

The fourth proportional to 20,777,323.30, 31,165,984.95 and 13,124,572.90 is: 19,686,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,323.30 : 31,165,984.95 = 13,124,572.90 : x
  2. Step 2: Convert to fraction form
    20,777,323.30/31,165,984.95 = 13,124,572.90/x
  3. Step 3: Cross multiply
    20,777,323.30x = 31,165,984.95 × 13,124,572.90
  4. Step 4: Simplify right side
    20,777,323.30x = 409,040,241,476,577.88
  5. Step 5: Solve for x
    x = 409,040,241,476,577.88/20,777,323.30
  6. Step 6: Final answer
    x = 19,686,859.35

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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.