Home / 445,136,483.20-667,704,724.80-215,553,971.20

Finding the Fourth Proportional to 445,136,483.20, 667,704,724.80 and 215,553,971.20

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Solution

The fourth proportional to 445,136,483.20, 667,704,724.80 and 215,553,971.20 is: 323,330,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,136,483.20 : 667,704,724.80 = 215,553,971.20 : x
  2. Step 2: Convert to fraction form
    445,136,483.20/667,704,724.80 = 215,553,971.20/x
  3. Step 3: Cross multiply
    445,136,483.20x = 667,704,724.80 × 215,553,971.20
  4. Step 4: Simplify right side
    445,136,483.20x = 143,926,405,019,643,104
  5. Step 5: Solve for x
    x = 143,926,405,019,643,104/445,136,483.20
  6. Step 6: Final answer
    x = 323,330,956.80

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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.