Home / 42,772,571.85-64,133,235.68-13,613,815.69

Finding the Fourth Proportional to 42,772,571.85, 64,133,235.68 and 13,613,815.69

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Solution

The fourth proportional to 42,772,571.85, 64,133,235.68 and 13,613,815.69 is: 20,412,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,772,571.85 : 64,133,235.68 = 13,613,815.69 : x
  2. Step 2: Convert to fraction form
    42,772,571.85/64,133,235.68 = 13,613,815.69/x
  3. Step 3: Cross multiply
    42,772,571.85x = 64,133,235.68 × 13,613,815.69
  4. Step 4: Simplify right side
    42,772,571.85x = 873,098,050,150,851.75
  5. Step 5: Solve for x
    x = 873,098,050,150,851.75/42,772,571.85
  6. Step 6: Final answer
    x = 20,412,568.44

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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.