Home / 86,290,511.44-129,436,251-28,782,624.76

Finding the Fourth Proportional to 86,290,511.44, 129,436,251 and 28,782,624.76

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Solution

The fourth proportional to 86,290,511.44, 129,436,251 and 28,782,624.76 is: 43,174,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290,511.44 : 129,436,251 = 28,782,624.76 : x
  2. Step 2: Convert to fraction form
    86,290,511.44/129,436,251 = 28,782,624.76/x
  3. Step 3: Cross multiply
    86,290,511.44x = 129,436,251 × 28,782,624.76
  4. Step 4: Simplify right side
    86,290,511.44x = 3,725,515,042,874,175
  5. Step 5: Solve for x
    x = 3,725,515,042,874,175/86,290,511.44
  6. Step 6: Final answer
    x = 43,174,098.53

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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.