Home / 78,525,211.68-108,370,553.72-56,200,293.84

Finding the Fourth Proportional to 78,525,211.68, 108,370,553.72 and 56,200,293.84

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Solution

The fourth proportional to 78,525,211.68, 108,370,553.72 and 56,200,293.84 is: 77,560,529.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,525,211.68 : 108,370,553.72 = 56,200,293.84 : x
  2. Step 2: Convert to fraction form
    78,525,211.68/108,370,553.72 = 56,200,293.84/x
  3. Step 3: Cross multiply
    78,525,211.68x = 108,370,553.72 × 56,200,293.84
  4. Step 4: Simplify right side
    78,525,211.68x = 6,090,456,962,667,505
  5. Step 5: Solve for x
    x = 6,090,456,962,667,505/78,525,211.68
  6. Step 6: Final answer
    x = 77,560,529.06

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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.