Home / 7,207,001.78-9,945,509.01-3,943,803.38

Finding the Fourth Proportional to 7,207,001.78, 9,945,509.01 and 3,943,803.38

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Solution

The fourth proportional to 7,207,001.78, 9,945,509.01 and 3,943,803.38 is: 5,442,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207,001.78 : 9,945,509.01 = 3,943,803.38 : x
  2. Step 2: Convert to fraction form
    7,207,001.78/9,945,509.01 = 3,943,803.38/x
  3. Step 3: Cross multiply
    7,207,001.78x = 9,945,509.01 × 3,943,803.38
  4. Step 4: Simplify right side
    7,207,001.78x = 39,223,132,049,458.45
  5. Step 5: Solve for x
    x = 39,223,132,049,458.45/7,207,001.78
  6. Step 6: Final answer
    x = 5,442,364.70

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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.