Home / 378,432,183.60-567,648,275.40-331,570,897.20

Finding the Fourth Proportional to 378,432,183.60, 567,648,275.40 and 331,570,897.20

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Solution

The fourth proportional to 378,432,183.60, 567,648,275.40 and 331,570,897.20 is: 497,356,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,432,183.60 : 567,648,275.40 = 331,570,897.20 : x
  2. Step 2: Convert to fraction form
    378,432,183.60/567,648,275.40 = 331,570,897.20/x
  3. Step 3: Cross multiply
    378,432,183.60x = 567,648,275.40 × 331,570,897.20
  4. Step 4: Simplify right side
    378,432,183.60x = 188,215,647,968,410,688
  5. Step 5: Solve for x
    x = 188,215,647,968,410,688/378,432,183.60
  6. Step 6: Final answer
    x = 497,356,345.80

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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.