Home / 12,921,846.90-19,381,215.15-5,348,022.90

Finding the Fourth Proportional to 12,921,846.90, 19,381,215.15 and 5,348,022.90

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Solution

The fourth proportional to 12,921,846.90, 19,381,215.15 and 5,348,022.90 is: 8,021,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,846.90 : 19,381,215.15 = 5,348,022.90 : x
  2. Step 2: Convert to fraction form
    12,921,846.90/19,381,215.15 = 5,348,022.90/x
  3. Step 3: Cross multiply
    12,921,846.90x = 19,381,215.15 × 5,348,022.90
  4. Step 4: Simplify right side
    12,921,846.90x = 103,651,182,452,026.94
  5. Step 5: Solve for x
    x = 103,651,182,452,026.94/12,921,846.90
  6. Step 6: Final answer
    x = 8,021,390.69

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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.