Home / 13,248,021.80-19,872,032.70-12,408,213.80

Finding the Fourth Proportional to 13,248,021.80, 19,872,032.70 and 12,408,213.80

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Solution

The fourth proportional to 13,248,021.80, 19,872,032.70 and 12,408,213.80 is: 18,612,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248,021.80 : 19,872,032.70 = 12,408,213.80 : x
  2. Step 2: Convert to fraction form
    13,248,021.80/19,872,032.70 = 12,408,213.80/x
  3. Step 3: Cross multiply
    13,248,021.80x = 19,872,032.70 × 12,408,213.80
  4. Step 4: Simplify right side
    13,248,021.80x = 246,576,430,382,191.25
  5. Step 5: Solve for x
    x = 246,576,430,382,191.25/13,248,021.80
  6. Step 6: Final answer
    x = 18,612,320.70

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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.