Home / 13,268,715-18,316,476.54-8,920,323.36

Finding the Fourth Proportional to 13,268,715, 18,316,476.54 and 8,920,323.36

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Solution

The fourth proportional to 13,268,715, 18,316,476.54 and 8,920,323.36 is: 12,313,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,715 : 18,316,476.54 = 8,920,323.36 : x
  2. Step 2: Convert to fraction form
    13,268,715/18,316,476.54 = 8,920,323.36/x
  3. Step 3: Cross multiply
    13,268,715x = 18,316,476.54 × 8,920,323.36
  4. Step 4: Simplify right side
    13,268,715x = 163,388,893,552,653.97
  5. Step 5: Solve for x
    x = 163,388,893,552,653.97/13,268,715
  6. Step 6: Final answer
    x = 12,313,844.52

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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.