Home / 8,620,908.65-11,899,736.80-5,137,339.81

Finding the Fourth Proportional to 8,620,908.65, 11,899,736.80 and 5,137,339.81

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Solution

The fourth proportional to 8,620,908.65, 11,899,736.80 and 5,137,339.81 is: 7,091,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620,908.65 : 11,899,736.80 = 5,137,339.81 : x
  2. Step 2: Convert to fraction form
    8,620,908.65/11,899,736.80 = 5,137,339.81/x
  3. Step 3: Cross multiply
    8,620,908.65x = 11,899,736.80 × 5,137,339.81
  4. Step 4: Simplify right side
    8,620,908.65x = 61,132,991,548,484.83
  5. Step 5: Solve for x
    x = 61,132,991,548,484.83/8,620,908.65
  6. Step 6: Final answer
    x = 7,091,246.88

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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.