Home / 20,466,330.67-28,243,390.11-11,173,900.45

Finding the Fourth Proportional to 20,466,330.67, 28,243,390.11 and 11,173,900.45

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Solution

The fourth proportional to 20,466,330.67, 28,243,390.11 and 11,173,900.45 is: 15,419,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466,330.67 : 28,243,390.11 = 11,173,900.45 : x
  2. Step 2: Convert to fraction form
    20,466,330.67/28,243,390.11 = 11,173,900.45/x
  3. Step 3: Cross multiply
    20,466,330.67x = 28,243,390.11 × 11,173,900.45
  4. Step 4: Simplify right side
    20,466,330.67x = 315,588,829,459,654.50
  5. Step 5: Solve for x
    x = 315,588,829,459,654.50/20,466,330.67
  6. Step 6: Final answer
    x = 15,419,902.79

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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.