Home / 10,478,974.80-15,686,969.40-6,216,949.20

Finding the Fourth Proportional to 10,478,974.80, 15,686,969.40 and 6,216,949.20

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Solution

The fourth proportional to 10,478,974.80, 15,686,969.40 and 6,216,949.20 is: 9,306,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478,974.80 : 15,686,969.40 = 6,216,949.20 : x
  2. Step 2: Convert to fraction form
    10,478,974.80/15,686,969.40 = 6,216,949.20/x
  3. Step 3: Cross multiply
    10,478,974.80x = 15,686,969.40 × 6,216,949.20
  4. Step 4: Simplify right side
    10,478,974.80x = 97,525,091,861,754.48
  5. Step 5: Solve for x
    x = 97,525,091,861,754.48/10,478,974.80
  6. Step 6: Final answer
    x = 9,306,739.80

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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.