Home / 7,251,931.36-10,007,685.24-3,989,080.42

Finding the Fourth Proportional to 7,251,931.36, 10,007,685.24 and 3,989,080.42

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Solution

The fourth proportional to 7,251,931.36, 10,007,685.24 and 3,989,080.42 is: 5,504,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251,931.36 : 10,007,685.24 = 3,989,080.42 : x
  2. Step 2: Convert to fraction form
    7,251,931.36/10,007,685.24 = 3,989,080.42/x
  3. Step 3: Cross multiply
    7,251,931.36x = 10,007,685.24 × 3,989,080.42
  4. Step 4: Simplify right side
    7,251,931.36x = 39,921,461,240,407
  5. Step 5: Solve for x
    x = 39,921,461,240,407/7,251,931.36
  6. Step 6: Final answer
    x = 5,504,941.96

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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.