Home / 7,216,401.37-9,958,645.65-3,953,144.47

Finding the Fourth Proportional to 7,216,401.37, 9,958,645.65 and 3,953,144.47

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Solution

The fourth proportional to 7,216,401.37, 9,958,645.65 and 3,953,144.47 is: 5,455,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216,401.37 : 9,958,645.65 = 3,953,144.47 : x
  2. Step 2: Convert to fraction form
    7,216,401.37/9,958,645.65 = 3,953,144.47/x
  3. Step 3: Cross multiply
    7,216,401.37x = 9,958,645.65 × 3,953,144.47
  4. Step 4: Simplify right side
    7,216,401.37x = 39,367,964,979,987.06
  5. Step 5: Solve for x
    x = 39,367,964,979,987.06/7,216,401.37
  6. Step 6: Final answer
    x = 5,455,345.81

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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.