Home / 7,155,867.12-9,874,918.64-4,099,884.56

Finding the Fourth Proportional to 7,155,867.12, 9,874,918.64 and 4,099,884.56

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Solution

The fourth proportional to 7,155,867.12, 9,874,918.64 and 4,099,884.56 is: 5,657,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155,867.12 : 9,874,918.64 = 4,099,884.56 : x
  2. Step 2: Convert to fraction form
    7,155,867.12/9,874,918.64 = 4,099,884.56/x
  3. Step 3: Cross multiply
    7,155,867.12x = 9,874,918.64 × 4,099,884.56
  4. Step 4: Simplify right side
    7,155,867.12x = 40,486,026,463,392.20
  5. Step 5: Solve for x
    x = 40,486,026,463,392.20/7,155,867.12
  6. Step 6: Final answer
    x = 5,657,738.72

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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.