Home / 442,956,124.40-664,434,186.60-212,869,727.60

Finding the Fourth Proportional to 442,956,124.40, 664,434,186.60 and 212,869,727.60

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Solution

The fourth proportional to 442,956,124.40, 664,434,186.60 and 212,869,727.60 is: 319,304,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,956,124.40 : 664,434,186.60 = 212,869,727.60 : x
  2. Step 2: Convert to fraction form
    442,956,124.40/664,434,186.60 = 212,869,727.60/x
  3. Step 3: Cross multiply
    442,956,124.40x = 664,434,186.60 × 212,869,727.60
  4. Step 4: Simplify right side
    442,956,124.40x = 141,437,924,309,669,568
  5. Step 5: Solve for x
    x = 141,437,924,309,669,568/442,956,124.40
  6. Step 6: Final answer
    x = 319,304,591.40

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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.