Home / 13,831,670.10-20,733,508.34-8,148,969.30

Finding the Fourth Proportional to 13,831,670.10, 20,733,508.34 and 8,148,969.30

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Solution

The fourth proportional to 13,831,670.10, 20,733,508.34 and 8,148,969.30 is: 12,215,207.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831,670.10 : 20,733,508.34 = 8,148,969.30 : x
  2. Step 2: Convert to fraction form
    13,831,670.10/20,733,508.34 = 8,148,969.30/x
  3. Step 3: Cross multiply
    13,831,670.10x = 20,733,508.34 × 8,148,969.30
  4. Step 4: Simplify right side
    13,831,670.10x = 168,956,722,943,953.97
  5. Step 5: Solve for x
    x = 168,956,722,943,953.97/13,831,670.10
  6. Step 6: Final answer
    x = 12,215,207.69

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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.