Home / 28,581,963.67-39,443,468.60-15,529,440.56

Finding the Fourth Proportional to 28,581,963.67, 39,443,468.60 and 15,529,440.56

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Solution

The fourth proportional to 28,581,963.67, 39,443,468.60 and 15,529,440.56 is: 21,430,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581,963.67 : 39,443,468.60 = 15,529,440.56 : x
  2. Step 2: Convert to fraction form
    28,581,963.67/39,443,468.60 = 15,529,440.56/x
  3. Step 3: Cross multiply
    28,581,963.67x = 39,443,468.60 × 15,529,440.56
  4. Step 4: Simplify right side
    28,581,963.67x = 612,535,001,124,887.88
  5. Step 5: Solve for x
    x = 612,535,001,124,887.88/28,581,963.67
  6. Step 6: Final answer
    x = 21,430,822.89

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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.