Home / 28,169,403.76-42,269,805.60-15,215,293

Finding the Fourth Proportional to 28,169,403.76, 42,269,805.60 and 15,215,293

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Solution

The fourth proportional to 28,169,403.76, 42,269,805.60 and 15,215,293 is: 22,831,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,403.76 : 42,269,805.60 = 15,215,293 : x
  2. Step 2: Convert to fraction form
    28,169,403.76/42,269,805.60 = 15,215,293/x
  3. Step 3: Cross multiply
    28,169,403.76x = 42,269,805.60 × 15,215,293
  4. Step 4: Simplify right side
    28,169,403.76x = 643,147,477,257,040.88
  5. Step 5: Solve for x
    x = 643,147,477,257,040.88/28,169,403.76
  6. Step 6: Final answer
    x = 22,831,419.60

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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.