Home / 442,858,448.40-664,287,672.60-212,772,051.60

Finding the Fourth Proportional to 442,858,448.40, 664,287,672.60 and 212,772,051.60

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Solution

The fourth proportional to 442,858,448.40, 664,287,672.60 and 212,772,051.60 is: 319,158,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,858,448.40 : 664,287,672.60 = 212,772,051.60 : x
  2. Step 2: Convert to fraction form
    442,858,448.40/664,287,672.60 = 212,772,051.60/x
  3. Step 3: Cross multiply
    442,858,448.40x = 664,287,672.60 × 212,772,051.60
  4. Step 4: Simplify right side
    442,858,448.40x = 141,341,850,951,691,104
  5. Step 5: Solve for x
    x = 141,341,850,951,691,104/442,858,448.40
  6. Step 6: Final answer
    x = 319,158,077.40

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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.