Home / 12,515,479.44-18,776,148.38-3,879,128.52

Finding the Fourth Proportional to 12,515,479.44, 18,776,148.38 and 3,879,128.52

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Solution

The fourth proportional to 12,515,479.44, 18,776,148.38 and 3,879,128.52 is: 5,819,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515,479.44 : 18,776,148.38 = 3,879,128.52 : x
  2. Step 2: Convert to fraction form
    12,515,479.44/18,776,148.38 = 3,879,128.52/x
  3. Step 3: Cross multiply
    12,515,479.44x = 18,776,148.38 × 3,879,128.52
  4. Step 4: Simplify right side
    12,515,479.44x = 72,835,092,657,214.16
  5. Step 5: Solve for x
    x = 72,835,092,657,214.16/12,515,479.44
  6. Step 6: Final answer
    x = 5,819,600.68

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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.