Home / 18,347,418.02-25,292,917.40-12,142,069.40

Finding the Fourth Proportional to 18,347,418.02, 25,292,917.40 and 12,142,069.40

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Solution

The fourth proportional to 18,347,418.02, 25,292,917.40 and 12,142,069.40 is: 16,738,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347,418.02 : 25,292,917.40 = 12,142,069.40 : x
  2. Step 2: Convert to fraction form
    18,347,418.02/25,292,917.40 = 12,142,069.40/x
  3. Step 3: Cross multiply
    18,347,418.02x = 25,292,917.40 × 12,142,069.40
  4. Step 4: Simplify right side
    18,347,418.02x = 307,108,358,399,267.56
  5. Step 5: Solve for x
    x = 307,108,358,399,267.56/18,347,418.02
  6. Step 6: Final answer
    x = 16,738,505.55

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1.5x scale

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.