Home / 212,958,561.60-319,217,392.80-115,708,795.20

Finding the Fourth Proportional to 212,958,561.60, 319,217,392.80 and 115,708,795.20

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Solution

The fourth proportional to 212,958,561.60, 319,217,392.80 and 115,708,795.20 is: 173,443,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,958,561.60 : 319,217,392.80 = 115,708,795.20 : x
  2. Step 2: Convert to fraction form
    212,958,561.60/319,217,392.80 = 115,708,795.20/x
  3. Step 3: Cross multiply
    212,958,561.60x = 319,217,392.80 × 115,708,795.20
  4. Step 4: Simplify right side
    212,958,561.60x = 36,936,259,927,773,160
  5. Step 5: Solve for x
    x = 36,936,259,927,773,160/212,958,561.60
  6. Step 6: Final answer
    x = 173,443,413.83

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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.