Home / 13,168,935.90-18,173,836.71-7,367,371.74

Finding the Fourth Proportional to 13,168,935.90, 18,173,836.71 and 7,367,371.74

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Solution

The fourth proportional to 13,168,935.90, 18,173,836.71 and 7,367,371.74 is: 10,167,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168,935.90 : 18,173,836.71 = 7,367,371.74 : x
  2. Step 2: Convert to fraction form
    13,168,935.90/18,173,836.71 = 7,367,371.74/x
  3. Step 3: Cross multiply
    13,168,935.90x = 18,173,836.71 × 7,367,371.74
  4. Step 4: Simplify right side
    13,168,935.90x = 133,893,410,984,628.59
  5. Step 5: Solve for x
    x = 133,893,410,984,628.59/13,168,935.90
  6. Step 6: Final answer
    x = 10,167,367.51

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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.