Home / 9,431,164.78-13,015,007.52-5,138,812.78

Finding the Fourth Proportional to 9,431,164.78, 13,015,007.52 and 5,138,812.78

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Solution

The fourth proportional to 9,431,164.78, 13,015,007.52 and 5,138,812.78 is: 7,091,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431,164.78 : 13,015,007.52 = 5,138,812.78 : x
  2. Step 2: Convert to fraction form
    9,431,164.78/13,015,007.52 = 5,138,812.78/x
  3. Step 3: Cross multiply
    9,431,164.78x = 13,015,007.52 × 5,138,812.78
  4. Step 4: Simplify right side
    9,431,164.78x = 66,881,686,975,572.11
  5. Step 5: Solve for x
    x = 66,881,686,975,572.11/9,431,164.78
  6. Step 6: Final answer
    x = 7,091,561.70

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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.