Home / 18,216,370.02-25,122,311.67-15,113,979.30

Finding the Fourth Proportional to 18,216,370.02, 25,122,311.67 and 15,113,979.30

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Solution

The fourth proportional to 18,216,370.02, 25,122,311.67 and 15,113,979.30 is: 20,843,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216,370.02 : 25,122,311.67 = 15,113,979.30 : x
  2. Step 2: Convert to fraction form
    18,216,370.02/25,122,311.67 = 15,113,979.30/x
  3. Step 3: Cross multiply
    18,216,370.02x = 25,122,311.67 × 15,113,979.30
  4. Step 4: Simplify right side
    18,216,370.02x = 379,698,098,548,528.50
  5. Step 5: Solve for x
    x = 379,698,098,548,528.50/18,216,370.02
  6. Step 6: Final answer
    x = 20,843,784.91

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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.