Home / 20,831,835.30-28,749,117.81-11,664,397.86

Finding the Fourth Proportional to 20,831,835.30, 28,749,117.81 and 11,664,397.86

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Solution

The fourth proportional to 20,831,835.30, 28,749,117.81 and 11,664,397.86 is: 16,097,532.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831,835.30 : 28,749,117.81 = 11,664,397.86 : x
  2. Step 2: Convert to fraction form
    20,831,835.30/28,749,117.81 = 11,664,397.86/x
  3. Step 3: Cross multiply
    20,831,835.30x = 28,749,117.81 × 11,664,397.86
  4. Step 4: Simplify right side
    20,831,835.30x = 335,341,148,259,851.88
  5. Step 5: Solve for x
    x = 335,341,148,259,851.88/20,831,835.30
  6. Step 6: Final answer
    x = 16,097,532.62

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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.