Home / 13,609,141.60-20,385,718.80-6,881,346.40

Finding the Fourth Proportional to 13,609,141.60, 20,385,718.80 and 6,881,346.40

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Solution

The fourth proportional to 13,609,141.60, 20,385,718.80 and 6,881,346.40 is: 10,307,864.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,141.60 : 20,385,718.80 = 6,881,346.40 : x
  2. Step 2: Convert to fraction form
    13,609,141.60/20,385,718.80 = 6,881,346.40/x
  3. Step 3: Cross multiply
    13,609,141.60x = 20,385,718.80 × 6,881,346.40
  4. Step 4: Simplify right side
    13,609,141.60x = 140,281,192,675,792.33
  5. Step 5: Solve for x
    x = 140,281,192,675,792.33/13,609,141.60
  6. Step 6: Final answer
    x = 10,307,864.87

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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.