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Finding the Fourth Proportional to 212,690,800.80, 319,036,201.20 and 182,079,799.20

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Solution

The fourth proportional to 212,690,800.80, 319,036,201.20 and 182,079,799.20 is: 273,119,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,690,800.80 : 319,036,201.20 = 182,079,799.20 : x
  2. Step 2: Convert to fraction form
    212,690,800.80/319,036,201.20 = 182,079,799.20/x
  3. Step 3: Cross multiply
    212,690,800.80x = 319,036,201.20 × 182,079,799.20
  4. Step 4: Simplify right side
    212,690,800.80x = 58,090,047,452,026,792
  5. Step 5: Solve for x
    x = 58,090,047,452,026,792/212,690,800.80
  6. Step 6: Final answer
    x = 273,119,698.80

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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.