Home / 20,565,415.90-30,848,123.85-10,487,719.90

Finding the Fourth Proportional to 20,565,415.90, 30,848,123.85 and 10,487,719.90

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Solution

The fourth proportional to 20,565,415.90, 30,848,123.85 and 10,487,719.90 is: 15,731,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565,415.90 : 30,848,123.85 = 10,487,719.90 : x
  2. Step 2: Convert to fraction form
    20,565,415.90/30,848,123.85 = 10,487,719.90/x
  3. Step 3: Cross multiply
    20,565,415.90x = 30,848,123.85 × 10,487,719.90
  4. Step 4: Simplify right side
    20,565,415.90x = 323,526,482,379,309.62
  5. Step 5: Solve for x
    x = 323,526,482,379,309.62/20,565,415.90
  6. Step 6: Final answer
    x = 15,731,579.85

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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.