Home / 20,898,052.80-31,347,079.20-18,666,000.60

Finding the Fourth Proportional to 20,898,052.80, 31,347,079.20 and 18,666,000.60

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Solution

The fourth proportional to 20,898,052.80, 31,347,079.20 and 18,666,000.60 is: 27,999,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898,052.80 : 31,347,079.20 = 18,666,000.60 : x
  2. Step 2: Convert to fraction form
    20,898,052.80/31,347,079.20 = 18,666,000.60/x
  3. Step 3: Cross multiply
    20,898,052.80x = 31,347,079.20 × 18,666,000.60
  4. Step 4: Simplify right side
    20,898,052.80x = 585,124,599,155,447.50
  5. Step 5: Solve for x
    x = 585,124,599,155,447.50/20,898,052.80
  6. Step 6: Final answer
    x = 27,999,000.90

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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.