Home / 13,124,076.30-19,686,114.45-12,557,205.90

Finding the Fourth Proportional to 13,124,076.30, 19,686,114.45 and 12,557,205.90

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Solution

The fourth proportional to 13,124,076.30, 19,686,114.45 and 12,557,205.90 is: 18,835,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124,076.30 : 19,686,114.45 = 12,557,205.90 : x
  2. Step 2: Convert to fraction form
    13,124,076.30/19,686,114.45 = 12,557,205.90/x
  3. Step 3: Cross multiply
    13,124,076.30x = 19,686,114.45 × 12,557,205.90
  4. Step 4: Simplify right side
    13,124,076.30x = 247,202,592,519,615.25
  5. Step 5: Solve for x
    x = 247,202,592,519,615.25/13,124,076.30
  6. Step 6: Final answer
    x = 18,835,808.85

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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.