Home / 7,639,642.80-11,459,362.75-1,882,445.29

Finding the Fourth Proportional to 7,639,642.80, 11,459,362.75 and 1,882,445.29

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Solution

The fourth proportional to 7,639,642.80, 11,459,362.75 and 1,882,445.29 is: 2,823,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639,642.80 : 11,459,362.75 = 1,882,445.29 : x
  2. Step 2: Convert to fraction form
    7,639,642.80/11,459,362.75 = 1,882,445.29/x
  3. Step 3: Cross multiply
    7,639,642.80x = 11,459,362.75 × 1,882,445.29
  4. Step 4: Simplify right side
    7,639,642.80x = 21,571,623,401,784.43
  5. Step 5: Solve for x
    x = 21,571,623,401,784.43/7,639,642.80
  6. Step 6: Final answer
    x = 2,823,642.93

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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.