Home / 12,112,487.20-18,178,645.20-12,018,008.80

Finding the Fourth Proportional to 12,112,487.20, 18,178,645.20 and 12,018,008.80

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Solution

The fourth proportional to 12,112,487.20, 18,178,645.20 and 12,018,008.80 is: 18,036,850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,487.20 : 18,178,645.20 = 12,018,008.80 : x
  2. Step 2: Convert to fraction form
    12,112,487.20/18,178,645.20 = 12,018,008.80/x
  3. Step 3: Cross multiply
    12,112,487.20x = 18,178,645.20 × 12,018,008.80
  4. Step 4: Simplify right side
    12,112,487.20x = 218,471,117,985,677.75
  5. Step 5: Solve for x
    x = 218,471,117,985,677.75/12,112,487.20
  6. Step 6: Final answer
    x = 18,036,850.27

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1.5x scale

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.