Home / 28,715,239.22-39,627,153.41-15,662,778.35

Finding the Fourth Proportional to 28,715,239.22, 39,627,153.41 and 15,662,778.35

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Solution

The fourth proportional to 28,715,239.22, 39,627,153.41 and 15,662,778.35 is: 21,614,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715,239.22 : 39,627,153.41 = 15,662,778.35 : x
  2. Step 2: Convert to fraction form
    28,715,239.22/39,627,153.41 = 15,662,778.35/x
  3. Step 3: Cross multiply
    28,715,239.22x = 39,627,153.41 × 15,662,778.35
  4. Step 4: Simplify right side
    28,715,239.22x = 620,671,320,225,827
  5. Step 5: Solve for x
    x = 620,671,320,225,827/28,715,239.22
  6. Step 6: Final answer
    x = 21,614,701.36

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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.