Home / 15,334,908.71-21,158,399.54-9,372,806.51

Finding the Fourth Proportional to 15,334,908.71, 21,158,399.54 and 9,372,806.51

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Solution

The fourth proportional to 15,334,908.71, 21,158,399.54 and 9,372,806.51 is: 12,932,165.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334,908.71 : 21,158,399.54 = 9,372,806.51 : x
  2. Step 2: Convert to fraction form
    15,334,908.71/21,158,399.54 = 9,372,806.51/x
  3. Step 3: Cross multiply
    15,334,908.71x = 21,158,399.54 × 9,372,806.51
  4. Step 4: Simplify right side
    15,334,908.71x = 198,313,584,949,693
  5. Step 5: Solve for x
    x = 198,313,584,949,693/15,334,908.71
  6. Step 6: Final answer
    x = 12,932,165.99

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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.