Home / 12,516,220.72-18,782,228.58-5,327,742.88

Finding the Fourth Proportional to 12,516,220.72, 18,782,228.58 and 5,327,742.88

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Solution

The fourth proportional to 12,516,220.72, 18,782,228.58 and 5,327,742.88 is: 7,994,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516,220.72 : 18,782,228.58 = 5,327,742.88 : x
  2. Step 2: Convert to fraction form
    12,516,220.72/18,782,228.58 = 5,327,742.88/x
  3. Step 3: Cross multiply
    12,516,220.72x = 18,782,228.58 × 5,327,742.88
  4. Step 4: Simplify right side
    12,516,220.72x = 100,066,884,587,627.50
  5. Step 5: Solve for x
    x = 100,066,884,587,627.50/12,516,220.72
  6. Step 6: Final answer
    x = 7,994,976.03

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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.