Home / 10,303,212.80-15,456,892.80-8,631,891.20

Finding the Fourth Proportional to 10,303,212.80, 15,456,892.80 and 8,631,891.20

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Solution

The fourth proportional to 10,303,212.80, 15,456,892.80 and 8,631,891.20 is: 12,949,574.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303,212.80 : 15,456,892.80 = 8,631,891.20 : x
  2. Step 2: Convert to fraction form
    10,303,212.80/15,456,892.80 = 8,631,891.20/x
  3. Step 3: Cross multiply
    10,303,212.80x = 15,456,892.80 × 8,631,891.20
  4. Step 4: Simplify right side
    10,303,212.80x = 133,422,216,939,663.36
  5. Step 5: Solve for x
    x = 133,422,216,939,663.36/10,303,212.80
  6. Step 6: Final answer
    x = 12,949,574.03

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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.