Home / 20,577,942.27-28,395,513.50-11,878,917.40

Finding the Fourth Proportional to 20,577,942.27, 28,395,513.50 and 11,878,917.40

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Solution

The fourth proportional to 20,577,942.27, 28,395,513.50 and 11,878,917.40 is: 16,391,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,942.27 : 28,395,513.50 = 11,878,917.40 : x
  2. Step 2: Convert to fraction form
    20,577,942.27/28,395,513.50 = 11,878,917.40/x
  3. Step 3: Cross multiply
    20,577,942.27x = 28,395,513.50 × 11,878,917.40
  4. Step 4: Simplify right side
    20,577,942.27x = 337,307,959,373,184.69
  5. Step 5: Solve for x
    x = 337,307,959,373,184.69/20,577,942.27
  6. Step 6: Final answer
    x = 16,391,724.45

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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.