Home / 12,962,736.96-17,888,938.20-7,161,892.80

Finding the Fourth Proportional to 12,962,736.96, 17,888,938.20 and 7,161,892.80

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Solution

The fourth proportional to 12,962,736.96, 17,888,938.20 and 7,161,892.80 is: 9,883,611.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962,736.96 : 17,888,938.20 = 7,161,892.80 : x
  2. Step 2: Convert to fraction form
    12,962,736.96/17,888,938.20 = 7,161,892.80/x
  3. Step 3: Cross multiply
    12,962,736.96x = 17,888,938.20 × 7,161,892.80
  4. Step 4: Simplify right side
    12,962,736.96x = 128,118,657,694,224.95
  5. Step 5: Solve for x
    x = 128,118,657,694,224.95/12,962,736.96
  6. Step 6: Final answer
    x = 9,883,611.62

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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.