Home / 7,881,963.60-11,822,945.40-4,286,341.20

Finding the Fourth Proportional to 7,881,963.60, 11,822,945.40 and 4,286,341.20

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Solution

The fourth proportional to 7,881,963.60, 11,822,945.40 and 4,286,341.20 is: 6,429,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,963.60 : 11,822,945.40 = 4,286,341.20 : x
  2. Step 2: Convert to fraction form
    7,881,963.60/11,822,945.40 = 4,286,341.20/x
  3. Step 3: Cross multiply
    7,881,963.60x = 11,822,945.40 × 4,286,341.20
  4. Step 4: Simplify right side
    7,881,963.60x = 50,677,177,973,370.48
  5. Step 5: Solve for x
    x = 50,677,177,973,370.48/7,881,963.60
  6. Step 6: Final answer
    x = 6,429,511.80

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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.