Home / 5,191,074.12-7,781,550-2,074,196.55

Finding the Fourth Proportional to 5,191,074.12, 7,781,550 and 2,074,196.55

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Solution

The fourth proportional to 5,191,074.12, 7,781,550 and 2,074,196.55 is: 3,109,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191,074.12 : 7,781,550 = 2,074,196.55 : x
  2. Step 2: Convert to fraction form
    5,191,074.12/7,781,550 = 2,074,196.55/x
  3. Step 3: Cross multiply
    5,191,074.12x = 7,781,550 × 2,074,196.55
  4. Step 4: Simplify right side
    5,191,074.12x = 16,140,464,163,652.50
  5. Step 5: Solve for x
    x = 16,140,464,163,652.50/5,191,074.12
  6. Step 6: Final answer
    x = 3,109,272.53

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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.