Home / 442,764,009.80-664,146,014.70-339,451,879.40

Finding the Fourth Proportional to 442,764,009.80, 664,146,014.70 and 339,451,879.40

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Solution

The fourth proportional to 442,764,009.80, 664,146,014.70 and 339,451,879.40 is: 509,177,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,764,009.80 : 664,146,014.70 = 339,451,879.40 : x
  2. Step 2: Convert to fraction form
    442,764,009.80/664,146,014.70 = 339,451,879.40/x
  3. Step 3: Cross multiply
    442,764,009.80x = 664,146,014.70 × 339,451,879.40
  4. Step 4: Simplify right side
    442,764,009.80x = 225,445,612,885,935,040
  5. Step 5: Solve for x
    x = 225,445,612,885,935,040/442,764,009.80
  6. Step 6: Final answer
    x = 509,177,819.10

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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.