Home / 9,280,987.31-12,807,569.81-5,150,778.48

Finding the Fourth Proportional to 9,280,987.31, 12,807,569.81 and 5,150,778.48

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Solution

The fourth proportional to 9,280,987.31, 12,807,569.81 and 5,150,778.48 is: 7,107,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280,987.31 : 12,807,569.81 = 5,150,778.48 : x
  2. Step 2: Convert to fraction form
    9,280,987.31/12,807,569.81 = 5,150,778.48/x
  3. Step 3: Cross multiply
    9,280,987.31x = 12,807,569.81 × 5,150,778.48
  4. Step 4: Simplify right side
    9,280,987.31x = 65,968,954,971,322.64
  5. Step 5: Solve for x
    x = 65,968,954,971,322.64/9,280,987.31
  6. Step 6: Final answer
    x = 7,107,967.37

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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.