Home / 15,915,003.90-21,962,705.58-8,671,659.90

Finding the Fourth Proportional to 15,915,003.90, 21,962,705.58 and 8,671,659.90

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Solution

The fourth proportional to 15,915,003.90, 21,962,705.58 and 8,671,659.90 is: 11,966,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915,003.90 : 21,962,705.58 = 8,671,659.90 : x
  2. Step 2: Convert to fraction form
    15,915,003.90/21,962,705.58 = 8,671,659.90/x
  3. Step 3: Cross multiply
    15,915,003.90x = 21,962,705.58 × 8,671,659.90
  4. Step 4: Simplify right side
    15,915,003.90x = 190,453,113,273,592.25
  5. Step 5: Solve for x
    x = 190,453,113,273,592.25/15,915,003.90
  6. Step 6: Final answer
    x = 11,966,890.77

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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.