Home / 20,862,664.90-28,792,245.98-11,573,228.02

Finding the Fourth Proportional to 20,862,664.90, 28,792,245.98 and 11,573,228.02

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Solution

The fourth proportional to 20,862,664.90, 28,792,245.98 and 11,573,228.02 is: 15,972,035.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,664.90 : 28,792,245.98 = 11,573,228.02 : x
  2. Step 2: Convert to fraction form
    20,862,664.90/28,792,245.98 = 11,573,228.02/x
  3. Step 3: Cross multiply
    20,862,664.90x = 28,792,245.98 × 11,573,228.02
  4. Step 4: Simplify right side
    20,862,664.90x = 333,219,228,043,933.69
  5. Step 5: Solve for x
    x = 333,219,228,043,933.69/20,862,664.90
  6. Step 6: Final answer
    x = 15,972,035.67

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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.