Home / 20,748,012.03-31,123,512.87-7,968,516.69

Finding the Fourth Proportional to 20,748,012.03, 31,123,512.87 and 7,968,516.69

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Solution

The fourth proportional to 20,748,012.03, 31,123,512.87 and 7,968,516.69 is: 11,953,349.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748,012.03 : 31,123,512.87 = 7,968,516.69 : x
  2. Step 2: Convert to fraction form
    20,748,012.03/31,123,512.87 = 7,968,516.69/x
  3. Step 3: Cross multiply
    20,748,012.03x = 31,123,512.87 × 7,968,516.69
  4. Step 4: Simplify right side
    20,748,012.03x = 248,008,231,756,024.81
  5. Step 5: Solve for x
    x = 248,008,231,756,024.81/20,748,012.03
  6. Step 6: Final answer
    x = 11,953,349.14

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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.