Home / 30,887,256.35-42,625,552.69-18,661,751.39

Finding the Fourth Proportional to 30,887,256.35, 42,625,552.69 and 18,661,751.39

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Solution

The fourth proportional to 30,887,256.35, 42,625,552.69 and 18,661,751.39 is: 25,753,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887,256.35 : 42,625,552.69 = 18,661,751.39 : x
  2. Step 2: Convert to fraction form
    30,887,256.35/42,625,552.69 = 18,661,751.39/x
  3. Step 3: Cross multiply
    30,887,256.35x = 42,625,552.69 × 18,661,751.39
  4. Step 4: Simplify right side
    30,887,256.35x = 795,467,467,292,016.62
  5. Step 5: Solve for x
    x = 795,467,467,292,016.62/30,887,256.35
  6. Step 6: Final answer
    x = 25,753,905.05

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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.