Home / 72,819,775.90-100,515,238.95-57,962,353.21

Finding the Fourth Proportional to 72,819,775.90, 100,515,238.95 and 57,962,353.21

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Solution

The fourth proportional to 72,819,775.90, 100,515,238.95 and 57,962,353.21 is: 80,007,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,819,775.90 : 100,515,238.95 = 57,962,353.21 : x
  2. Step 2: Convert to fraction form
    72,819,775.90/100,515,238.95 = 57,962,353.21/x
  3. Step 3: Cross multiply
    72,819,775.90x = 100,515,238.95 × 57,962,353.21
  4. Step 4: Simplify right side
    72,819,775.90x = 5,826,099,782,756,162
  5. Step 5: Solve for x
    x = 5,826,099,782,756,162/72,819,775.90
  6. Step 6: Final answer
    x = 80,007,109.48

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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.