Home / 13,268,712.03-18,316,472.37-8,920,320.39

Finding the Fourth Proportional to 13,268,712.03, 18,316,472.37 and 8,920,320.39

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Solution

The fourth proportional to 13,268,712.03, 18,316,472.37 and 8,920,320.39 is: 12,313,840.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,712.03 : 18,316,472.37 = 8,920,320.39 : x
  2. Step 2: Convert to fraction form
    13,268,712.03/18,316,472.37 = 8,920,320.39/x
  3. Step 3: Cross multiply
    13,268,712.03x = 18,316,472.37 × 8,920,320.39
  4. Step 4: Simplify right side
    13,268,712.03x = 163,388,801,954,982.66
  5. Step 5: Solve for x
    x = 163,388,801,954,982.66/13,268,712.03
  6. Step 6: Final answer
    x = 12,313,840.38

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1.5x scale

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.