Home / 314,560,820.80-471,841,231.20-211,768,321.60

Finding the Fourth Proportional to 314,560,820.80, 471,841,231.20 and 211,768,321.60

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Solution

The fourth proportional to 314,560,820.80, 471,841,231.20 and 211,768,321.60 is: 317,652,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,560,820.80 : 471,841,231.20 = 211,768,321.60 : x
  2. Step 2: Convert to fraction form
    314,560,820.80/471,841,231.20 = 211,768,321.60/x
  3. Step 3: Cross multiply
    314,560,820.80x = 471,841,231.20 × 211,768,321.60
  4. Step 4: Simplify right side
    314,560,820.80x = 99,921,025,592,901,552
  5. Step 5: Solve for x
    x = 99,921,025,592,901,552/314,560,820.80
  6. Step 6: Final answer
    x = 317,652,482.40

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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.