Home / 12,921,851.40-19,381,221.90-5,348,027.40

Finding the Fourth Proportional to 12,921,851.40, 19,381,221.90 and 5,348,027.40

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Solution

The fourth proportional to 12,921,851.40, 19,381,221.90 and 5,348,027.40 is: 8,021,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,851.40 : 19,381,221.90 = 5,348,027.40 : x
  2. Step 2: Convert to fraction form
    12,921,851.40/19,381,221.90 = 5,348,027.40/x
  3. Step 3: Cross multiply
    12,921,851.40x = 19,381,221.90 × 5,348,027.40
  4. Step 4: Simplify right side
    12,921,851.40x = 103,651,305,766,680.06
  5. Step 5: Solve for x
    x = 103,651,305,766,680.06/12,921,851.40
  6. Step 6: Final answer
    x = 8,021,397.44

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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.