Home / 5,160,661.47-7,121,895.57-2,837,730.78

Finding the Fourth Proportional to 5,160,661.47, 7,121,895.57 and 2,837,730.78

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Solution

The fourth proportional to 5,160,661.47, 7,121,895.57 and 2,837,730.78 is: 3,916,168.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160,661.47 : 7,121,895.57 = 2,837,730.78 : x
  2. Step 2: Convert to fraction form
    5,160,661.47/7,121,895.57 = 2,837,730.78/x
  3. Step 3: Cross multiply
    5,160,661.47x = 7,121,895.57 × 2,837,730.78
  4. Step 4: Simplify right side
    5,160,661.47x = 20,210,022,270,934.64
  5. Step 5: Solve for x
    x = 20,210,022,270,934.64/5,160,661.47
  6. Step 6: Final answer
    x = 3,916,168.96

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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.