Home / 685,167,597.76-1,027,791,019.60-193,839,709.72

Finding the Fourth Proportional to 685,167,597.76, 1,027,791,019.60 and 193,839,709.72

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Solution

The fourth proportional to 685,167,597.76, 1,027,791,019.60 and 193,839,709.72 is: 290,770,774.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,167,597.76 : 1,027,791,019.60 = 193,839,709.72 : x
  2. Step 2: Convert to fraction form
    685,167,597.76/1,027,791,019.60 = 193,839,709.72/x
  3. Step 3: Cross multiply
    685,167,597.76x = 1,027,791,019.60 × 193,839,709.72
  4. Step 4: Simplify right side
    685,167,597.76x = 199,226,712,892,086,848
  5. Step 5: Solve for x
    x = 199,226,712,892,086,848/685,167,597.76
  6. Step 6: Final answer
    x = 290,770,774.25

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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.