Home / 12,638,315.52-18,958,808.32-4,119,319.04

Finding the Fourth Proportional to 12,638,315.52, 18,958,808.32 and 4,119,319.04

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Solution

The fourth proportional to 12,638,315.52, 18,958,808.32 and 4,119,319.04 is: 6,179,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638,315.52 : 18,958,808.32 = 4,119,319.04 : x
  2. Step 2: Convert to fraction form
    12,638,315.52/18,958,808.32 = 4,119,319.04/x
  3. Step 3: Cross multiply
    12,638,315.52x = 18,958,808.32 × 4,119,319.04
  4. Step 4: Simplify right side
    12,638,315.52x = 78,097,380,088,286.42
  5. Step 5: Solve for x
    x = 78,097,380,088,286.42/12,638,315.52
  6. Step 6: Final answer
    x = 6,179,413.70

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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.