Home / 9,519,731.70-13,137,458.08-5,169,001.38

Finding the Fourth Proportional to 9,519,731.70, 13,137,458.08 and 5,169,001.38

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Solution

The fourth proportional to 9,519,731.70, 13,137,458.08 and 5,169,001.38 is: 7,133,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519,731.70 : 13,137,458.08 = 5,169,001.38 : x
  2. Step 2: Convert to fraction form
    9,519,731.70/13,137,458.08 = 5,169,001.38/x
  3. Step 3: Cross multiply
    9,519,731.70x = 13,137,458.08 × 5,169,001.38
  4. Step 4: Simplify right side
    9,519,731.70x = 67,907,538,945,212.15
  5. Step 5: Solve for x
    x = 67,907,538,945,212.15/9,519,731.70
  6. Step 6: Final answer
    x = 7,133,345.88

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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.