Home / 3,918,690.87-5,407,613.90-2,176,471.67

Finding the Fourth Proportional to 3,918,690.87, 5,407,613.90 and 2,176,471.67

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Solution

The fourth proportional to 3,918,690.87, 5,407,613.90 and 2,176,471.67 is: 3,003,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,690.87 : 5,407,613.90 = 2,176,471.67 : x
  2. Step 2: Convert to fraction form
    3,918,690.87/5,407,613.90 = 2,176,471.67/x
  3. Step 3: Cross multiply
    3,918,690.87x = 5,407,613.90 × 2,176,471.67
  4. Step 4: Simplify right side
    3,918,690.87x = 11,769,518,417,727.79
  5. Step 5: Solve for x
    x = 11,769,518,417,727.79/3,918,690.87
  6. Step 6: Final answer
    x = 3,003,431.20

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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.