Home / 12,516,222.47-18,782,231.21-5,327,744.63

Finding the Fourth Proportional to 12,516,222.47, 18,782,231.21 and 5,327,744.63

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Solution

The fourth proportional to 12,516,222.47, 18,782,231.21 and 5,327,744.63 is: 7,994,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516,222.47 : 18,782,231.21 = 5,327,744.63 : x
  2. Step 2: Convert to fraction form
    12,516,222.47/18,782,231.21 = 5,327,744.63/x
  3. Step 3: Cross multiply
    12,516,222.47x = 18,782,231.21 × 5,327,744.63
  4. Step 4: Simplify right side
    12,516,222.47x = 100,066,931,468,495.91
  5. Step 5: Solve for x
    x = 100,066,931,468,495.91/12,516,222.47
  6. Step 6: Final answer
    x = 7,994,978.65

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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.