Home / 5,071,908.60-6,999,951.60-3,138,791.76

Finding the Fourth Proportional to 5,071,908.60, 6,999,951.60 and 3,138,791.76

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Solution

The fourth proportional to 5,071,908.60, 6,999,951.60 and 3,138,791.76 is: 4,331,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071,908.60 : 6,999,951.60 = 3,138,791.76 : x
  2. Step 2: Convert to fraction form
    5,071,908.60/6,999,951.60 = 3,138,791.76/x
  3. Step 3: Cross multiply
    5,071,908.60x = 6,999,951.60 × 3,138,791.76
  4. Step 4: Simplify right side
    5,071,908.60x = 21,971,390,402,478.81
  5. Step 5: Solve for x
    x = 21,971,390,402,478.81/5,071,908.60
  6. Step 6: Final answer
    x = 4,331,976.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.