Home / 15,313,304.40-21,133,301.40-8,437,784.64

Finding the Fourth Proportional to 15,313,304.40, 21,133,301.40 and 8,437,784.64

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Solution

The fourth proportional to 15,313,304.40, 21,133,301.40 and 8,437,784.64 is: 11,644,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313,304.40 : 21,133,301.40 = 8,437,784.64 : x
  2. Step 2: Convert to fraction form
    15,313,304.40/21,133,301.40 = 8,437,784.64/x
  3. Step 3: Cross multiply
    15,313,304.40x = 21,133,301.40 × 8,437,784.64
  4. Step 4: Simplify right side
    15,313,304.40x = 178,318,245,945,410.50
  5. Step 5: Solve for x
    x = 178,318,245,945,410.50/15,313,304.40
  6. Step 6: Final answer
    x = 11,644,661.48

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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.