Home / 28,475,905.68-39,296,511.72-15,422,861.52

Finding the Fourth Proportional to 28,475,905.68, 39,296,511.72 and 15,422,861.52

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Solution

The fourth proportional to 28,475,905.68, 39,296,511.72 and 15,422,861.52 is: 21,283,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475,905.68 : 39,296,511.72 = 15,422,861.52 : x
  2. Step 2: Convert to fraction form
    28,475,905.68/39,296,511.72 = 15,422,861.52/x
  3. Step 3: Cross multiply
    28,475,905.68x = 39,296,511.72 × 15,422,861.52
  4. Step 4: Simplify right side
    28,475,905.68x = 606,064,658,476,617
  5. Step 5: Solve for x
    x = 606,064,658,476,617/28,475,905.68
  6. Step 6: Final answer
    x = 21,283,419.93

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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.