Home / 28,706,881.52-39,616,453.06-15,654,854.54

Finding the Fourth Proportional to 28,706,881.52, 39,616,453.06 and 15,654,854.54

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Solution

The fourth proportional to 28,706,881.52, 39,616,453.06 and 15,654,854.54 is: 21,604,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706,881.52 : 39,616,453.06 = 15,654,854.54 : x
  2. Step 2: Convert to fraction form
    28,706,881.52/39,616,453.06 = 15,654,854.54/x
  3. Step 3: Cross multiply
    28,706,881.52x = 39,616,453.06 × 15,654,854.54
  4. Step 4: Simplify right side
    28,706,881.52x = 620,189,810,045,037.88
  5. Step 5: Solve for x
    x = 620,189,810,045,037.88/28,706,881.52
  6. Step 6: Final answer
    x = 21,604,220.91

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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.