Home / 28,166,624.90-42,244,943.09-12,810,317.66

Finding the Fourth Proportional to 28,166,624.90, 42,244,943.09 and 12,810,317.66

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Solution

The fourth proportional to 28,166,624.90, 42,244,943.09 and 12,810,317.66 is: 19,213,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166,624.90 : 42,244,943.09 = 12,810,317.66 : x
  2. Step 2: Convert to fraction form
    28,166,624.90/42,244,943.09 = 12,810,317.66/x
  3. Step 3: Cross multiply
    28,166,624.90x = 42,244,943.09 × 12,810,317.66
  4. Step 4: Simplify right side
    28,166,624.90x = 541,171,140,511,522
  5. Step 5: Solve for x
    x = 541,171,140,511,522/28,166,624.90
  6. Step 6: Final answer
    x = 19,213,205.08

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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.