Home / 20,831,841.73-28,741,722.51-13,478,026.87

Finding the Fourth Proportional to 20,831,841.73, 28,741,722.51 and 13,478,026.87

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Solution

The fourth proportional to 20,831,841.73, 28,741,722.51 and 13,478,026.87 is: 18,595,653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831,841.73 : 28,741,722.51 = 13,478,026.87 : x
  2. Step 2: Convert to fraction form
    20,831,841.73/28,741,722.51 = 13,478,026.87/x
  3. Step 3: Cross multiply
    20,831,841.73x = 28,741,722.51 × 13,478,026.87
  4. Step 4: Simplify right side
    20,831,841.73x = 387,381,708,279,863.81
  5. Step 5: Solve for x
    x = 387,381,708,279,863.81/20,831,841.73
  6. Step 6: Final answer
    x = 18,595,653.39

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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.