Home / 61,257,475.50-91,900,507.11-20,313,919.50

Finding the Fourth Proportional to 61,257,475.50, 91,900,507.11 and 20,313,919.50

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Solution

The fourth proportional to 61,257,475.50, 91,900,507.11 and 20,313,919.50 is: 30,475,619.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,257,475.50 : 91,900,507.11 = 20,313,919.50 : x
  2. Step 2: Convert to fraction form
    61,257,475.50/91,900,507.11 = 20,313,919.50/x
  3. Step 3: Cross multiply
    61,257,475.50x = 91,900,507.11 × 20,313,919.50
  4. Step 4: Simplify right side
    61,257,475.50x = 1,866,859,503,441,717.75
  5. Step 5: Solve for x
    x = 1,866,859,503,441,717.75/61,257,475.50
  6. Step 6: Final answer
    x = 30,475,619.31

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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.