Home / 21,945,370.05-30,285,294.15-12,156,725.07

Finding the Fourth Proportional to 21,945,370.05, 30,285,294.15 and 12,156,725.07

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Solution

The fourth proportional to 21,945,370.05, 30,285,294.15 and 12,156,725.07 is: 16,776,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945,370.05 : 30,285,294.15 = 12,156,725.07 : x
  2. Step 2: Convert to fraction form
    21,945,370.05/30,285,294.15 = 12,156,725.07/x
  3. Step 3: Cross multiply
    21,945,370.05x = 30,285,294.15 × 12,156,725.07
  4. Step 4: Simplify right side
    21,945,370.05x = 368,169,994,645,629.31
  5. Step 5: Solve for x
    x = 368,169,994,645,629.31/21,945,370.05
  6. Step 6: Final answer
    x = 16,776,659.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.