Home / 7,158,803.63-9,879,150.62-3,939,539.63

Finding the Fourth Proportional to 7,158,803.63, 9,879,150.62 and 3,939,539.63

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Solution

The fourth proportional to 7,158,803.63, 9,879,150.62 and 3,939,539.63 is: 5,436,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,803.63 : 9,879,150.62 = 3,939,539.63 : x
  2. Step 2: Convert to fraction form
    7,158,803.63/9,879,150.62 = 3,939,539.63/x
  3. Step 3: Cross multiply
    7,158,803.63x = 9,879,150.62 × 3,939,539.63
  4. Step 4: Simplify right side
    7,158,803.63x = 38,919,305,338,682.17
  5. Step 5: Solve for x
    x = 38,919,305,338,682.17/7,158,803.63
  6. Step 6: Final answer
    x = 5,436,565.57

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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.