Home / 20,862,660.67-28,792,195.27-11,573,225.76

Finding the Fourth Proportional to 20,862,660.67, 28,792,195.27 and 11,573,225.76

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Solution

The fourth proportional to 20,862,660.67, 28,792,195.27 and 11,573,225.76 is: 15,972,007.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,660.67 : 28,792,195.27 = 11,573,225.76 : x
  2. Step 2: Convert to fraction form
    20,862,660.67/28,792,195.27 = 11,573,225.76/x
  3. Step 3: Cross multiply
    20,862,660.67x = 28,792,195.27 × 11,573,225.76
  4. Step 4: Simplify right side
    20,862,660.67x = 333,218,575,946,270.12
  5. Step 5: Solve for x
    x = 333,218,575,946,270.12/20,862,660.67
  6. Step 6: Final answer
    x = 15,972,007.66

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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.