Home / 20,536,894.32-28,340,720.28-11,831,869.68

Finding the Fourth Proportional to 20,536,894.32, 28,340,720.28 and 11,831,869.68

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Solution

The fourth proportional to 20,536,894.32, 28,340,720.28 and 11,831,869.68 is: 16,327,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536,894.32 : 28,340,720.28 = 11,831,869.68 : x
  2. Step 2: Convert to fraction form
    20,536,894.32/28,340,720.28 = 11,831,869.68/x
  3. Step 3: Cross multiply
    20,536,894.32x = 28,340,720.28 × 11,831,869.68
  4. Step 4: Simplify right side
    20,536,894.32x = 335,323,708,990,293.12
  5. Step 5: Solve for x
    x = 335,323,708,990,293.12/20,536,894.32
  6. Step 6: Final answer
    x = 16,327,868.46

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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.