Home / 20,913,563.03-28,860,141.08-11,620,892.70

Finding the Fourth Proportional to 20,913,563.03, 28,860,141.08 and 11,620,892.70

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Solution

The fourth proportional to 20,913,563.03, 28,860,141.08 and 11,620,892.70 is: 16,036,511.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913,563.03 : 28,860,141.08 = 11,620,892.70 : x
  2. Step 2: Convert to fraction form
    20,913,563.03/28,860,141.08 = 11,620,892.70/x
  3. Step 3: Cross multiply
    20,913,563.03x = 28,860,141.08 × 11,620,892.70
  4. Step 4: Simplify right side
    20,913,563.03x = 335,380,602,739,437.62
  5. Step 5: Solve for x
    x = 335,380,602,739,437.62/20,913,563.03
  6. Step 6: Final answer
    x = 16,036,511.92

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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.