Home / 139,655,618.33-192,695,267.16-80,914,706.51

Finding the Fourth Proportional to 139,655,618.33, 192,695,267.16 and 80,914,706.51

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Solution

The fourth proportional to 139,655,618.33, 192,695,267.16 and 80,914,706.51 is: 111,645,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,655,618.33 : 192,695,267.16 = 80,914,706.51 : x
  2. Step 2: Convert to fraction form
    139,655,618.33/192,695,267.16 = 80,914,706.51/x
  3. Step 3: Cross multiply
    139,655,618.33x = 192,695,267.16 × 80,914,706.51
  4. Step 4: Simplify right side
    139,655,618.33x = 15,591,880,987,153,964
  5. Step 5: Solve for x
    x = 15,591,880,987,153,964/139,655,618.33
  6. Step 6: Final answer
    x = 111,645,211.09

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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.