Home / 7,142,846.24-9,857,200.14-3,879,724.64

Finding the Fourth Proportional to 7,142,846.24, 9,857,200.14 and 3,879,724.64

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Solution

The fourth proportional to 7,142,846.24, 9,857,200.14 and 3,879,724.64 is: 5,354,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,846.24 : 9,857,200.14 = 3,879,724.64 : x
  2. Step 2: Convert to fraction form
    7,142,846.24/9,857,200.14 = 3,879,724.64/x
  3. Step 3: Cross multiply
    7,142,846.24x = 9,857,200.14 × 3,879,724.64
  4. Step 4: Simplify right side
    7,142,846.24x = 38,243,222,264,569.45
  5. Step 5: Solve for x
    x = 38,243,222,264,569.45/7,142,846.24
  6. Step 6: Final answer
    x = 5,354,059.29

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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.