Home / 28,379,869.20-42,569,803.80-26,190,147.60

Finding the Fourth Proportional to 28,379,869.20, 42,569,803.80 and 26,190,147.60

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Solution

The fourth proportional to 28,379,869.20, 42,569,803.80 and 26,190,147.60 is: 39,285,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379,869.20 : 42,569,803.80 = 26,190,147.60 : x
  2. Step 2: Convert to fraction form
    28,379,869.20/42,569,803.80 = 26,190,147.60/x
  3. Step 3: Cross multiply
    28,379,869.20x = 42,569,803.80 × 26,190,147.60
  4. Step 4: Simplify right side
    28,379,869.20x = 1,114,909,444,825,040.88
  5. Step 5: Solve for x
    x = 1,114,909,444,825,040.88/28,379,869.20
  6. Step 6: Final answer
    x = 39,285,221.40

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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.