Home / 12,942,422.40-19,413,633.60-12,774,460.80

Finding the Fourth Proportional to 12,942,422.40, 19,413,633.60 and 12,774,460.80

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Solution

The fourth proportional to 12,942,422.40, 19,413,633.60 and 12,774,460.80 is: 19,161,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,422.40 : 19,413,633.60 = 12,774,460.80 : x
  2. Step 2: Convert to fraction form
    12,942,422.40/19,413,633.60 = 12,774,460.80/x
  3. Step 3: Cross multiply
    12,942,422.40x = 19,413,633.60 × 12,774,460.80
  4. Step 4: Simplify right side
    12,942,422.40x = 247,998,701,408,762.91
  5. Step 5: Solve for x
    x = 247,998,701,408,762.91/12,942,422.40
  6. Step 6: Final answer
    x = 19,161,691.20

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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.