Home / 7,130,172.88-9,839,021.16-4,189,678.48

Finding the Fourth Proportional to 7,130,172.88, 9,839,021.16 and 4,189,678.48

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Solution

The fourth proportional to 7,130,172.88, 9,839,021.16 and 4,189,678.48 is: 5,781,393.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130,172.88 : 9,839,021.16 = 4,189,678.48 : x
  2. Step 2: Convert to fraction form
    7,130,172.88/9,839,021.16 = 4,189,678.48/x
  3. Step 3: Cross multiply
    7,130,172.88x = 9,839,021.16 × 4,189,678.48
  4. Step 4: Simplify right side
    7,130,172.88x = 41,222,335,218,316.64
  5. Step 5: Solve for x
    x = 41,222,335,218,316.64/7,130,172.88
  6. Step 6: Final answer
    x = 5,781,393.51

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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.