Home / 21,886,858.70-32,830,288.05-20,123,261.90

Finding the Fourth Proportional to 21,886,858.70, 32,830,288.05 and 20,123,261.90

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Solution

The fourth proportional to 21,886,858.70, 32,830,288.05 and 20,123,261.90 is: 30,184,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886,858.70 : 32,830,288.05 = 20,123,261.90 : x
  2. Step 2: Convert to fraction form
    21,886,858.70/32,830,288.05 = 20,123,261.90/x
  3. Step 3: Cross multiply
    21,886,858.70x = 32,830,288.05 × 20,123,261.90
  4. Step 4: Simplify right side
    21,886,858.70x = 660,652,484,682,590.25
  5. Step 5: Solve for x
    x = 660,652,484,682,590.25/21,886,858.70
  6. Step 6: Final answer
    x = 30,184,892.85

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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.