Home / 18,191,205.45-27,300,094.20-12,810,365.33

Finding the Fourth Proportional to 18,191,205.45, 27,300,094.20 and 12,810,365.33

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Solution

The fourth proportional to 18,191,205.45, 27,300,094.20 and 12,810,365.33 is: 19,224,904.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,205.45 : 27,300,094.20 = 12,810,365.33 : x
  2. Step 2: Convert to fraction form
    18,191,205.45/27,300,094.20 = 12,810,365.33/x
  3. Step 3: Cross multiply
    18,191,205.45x = 27,300,094.20 × 12,810,365.33
  4. Step 4: Simplify right side
    18,191,205.45x = 349,724,180,108,913.56
  5. Step 5: Solve for x
    x = 349,724,180,108,913.56/18,191,205.45
  6. Step 6: Final answer
    x = 19,224,904.09

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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.