Home / 13,490,392.12-18,622,820.37-8,602,184.68

Finding the Fourth Proportional to 13,490,392.12, 18,622,820.37 and 8,602,184.68

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Solution

The fourth proportional to 13,490,392.12, 18,622,820.37 and 8,602,184.68 is: 11,874,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490,392.12 : 18,622,820.37 = 8,602,184.68 : x
  2. Step 2: Convert to fraction form
    13,490,392.12/18,622,820.37 = 8,602,184.68/x
  3. Step 3: Cross multiply
    13,490,392.12x = 18,622,820.37 × 8,602,184.68
  4. Step 4: Simplify right side
    13,490,392.12x = 160,196,940,085,205.94
  5. Step 5: Solve for x
    x = 160,196,940,085,205.94/13,490,392.12
  6. Step 6: Final answer
    x = 11,874,891.30

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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.