Home / 442,955,546.40-664,433,319.60-212,869,149.60

Finding the Fourth Proportional to 442,955,546.40, 664,433,319.60 and 212,869,149.60

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Solution

The fourth proportional to 442,955,546.40, 664,433,319.60 and 212,869,149.60 is: 319,303,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,955,546.40 : 664,433,319.60 = 212,869,149.60 : x
  2. Step 2: Convert to fraction form
    442,955,546.40/664,433,319.60 = 212,869,149.60/x
  3. Step 3: Cross multiply
    442,955,546.40x = 664,433,319.60 × 212,869,149.60
  4. Step 4: Simplify right side
    442,955,546.40x = 141,437,355,709,157,008
  5. Step 5: Solve for x
    x = 141,437,355,709,157,008/442,955,546.40
  6. Step 6: Final answer
    x = 319,303,724.40

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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.