Home / 18,442,057.86-25,426,377.06-15,122,118.96

Finding the Fourth Proportional to 18,442,057.86, 25,426,377.06 and 15,122,118.96

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Solution

The fourth proportional to 18,442,057.86, 25,426,377.06 and 15,122,118.96 is: 20,849,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442,057.86 : 25,426,377.06 = 15,122,118.96 : x
  2. Step 2: Convert to fraction form
    18,442,057.86/25,426,377.06 = 15,122,118.96/x
  3. Step 3: Cross multiply
    18,442,057.86x = 25,426,377.06 × 15,122,118.96
  4. Step 4: Simplify right side
    18,442,057.86x = 384,500,698,623,135.06
  5. Step 5: Solve for x
    x = 384,500,698,623,135.06/18,442,057.86
  6. Step 6: Final answer
    x = 20,849,121.15

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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.