Home / 236,218,805.90-354,328,208.85-212,410,249.10

Finding the Fourth Proportional to 236,218,805.90, 354,328,208.85 and 212,410,249.10

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Solution

The fourth proportional to 236,218,805.90, 354,328,208.85 and 212,410,249.10 is: 318,615,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,218,805.90 : 354,328,208.85 = 212,410,249.10 : x
  2. Step 2: Convert to fraction form
    236,218,805.90/354,328,208.85 = 212,410,249.10/x
  3. Step 3: Cross multiply
    236,218,805.90x = 354,328,208.85 × 212,410,249.10
  4. Step 4: Simplify right side
    236,218,805.90x = 75,262,943,104,985,328
  5. Step 5: Solve for x
    x = 75,262,943,104,985,328/236,218,805.90
  6. Step 6: Final answer
    x = 318,615,373.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.