Home / 9,139,458.78-12,612,453.06-5,065,340.22

Finding the Fourth Proportional to 9,139,458.78, 12,612,453.06 and 5,065,340.22

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Solution

The fourth proportional to 9,139,458.78, 12,612,453.06 and 5,065,340.22 is: 6,990,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,458.78 : 12,612,453.06 = 5,065,340.22 : x
  2. Step 2: Convert to fraction form
    9,139,458.78/12,612,453.06 = 5,065,340.22/x
  3. Step 3: Cross multiply
    9,139,458.78x = 12,612,453.06 × 5,065,340.22
  4. Step 4: Simplify right side
    9,139,458.78x = 63,886,365,757,680.07
  5. Step 5: Solve for x
    x = 63,886,365,757,680.07/9,139,458.78
  6. Step 6: Final answer
    x = 6,990,169.47

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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.