Home / 9,431,154.78-13,014,993.72-5,138,802.78

Finding the Fourth Proportional to 9,431,154.78, 13,014,993.72 and 5,138,802.78

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Solution

The fourth proportional to 9,431,154.78, 13,014,993.72 and 5,138,802.78 is: 7,091,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431,154.78 : 13,014,993.72 = 5,138,802.78 : x
  2. Step 2: Convert to fraction form
    9,431,154.78/13,014,993.72 = 5,138,802.78/x
  3. Step 3: Cross multiply
    9,431,154.78x = 13,014,993.72 × 5,138,802.78
  4. Step 4: Simplify right side
    9,431,154.78x = 66,881,485,910,018.55
  5. Step 5: Solve for x
    x = 66,881,485,910,018.55/9,431,154.78
  6. Step 6: Final answer
    x = 7,091,547.90

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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.