Home / 10,639,969.20-15,959,953.80-7,448,698.80

Finding the Fourth Proportional to 10,639,969.20, 15,959,953.80 and 7,448,698.80

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Solution

The fourth proportional to 10,639,969.20, 15,959,953.80 and 7,448,698.80 is: 11,173,048.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639,969.20 : 15,959,953.80 = 7,448,698.80 : x
  2. Step 2: Convert to fraction form
    10,639,969.20/15,959,953.80 = 7,448,698.80/x
  3. Step 3: Cross multiply
    10,639,969.20x = 15,959,953.80 × 7,448,698.80
  4. Step 4: Simplify right side
    10,639,969.20x = 118,880,888,718,115.44
  5. Step 5: Solve for x
    x = 118,880,888,718,115.44/10,639,969.20
  6. Step 6: Final answer
    x = 11,173,048.20

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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.