Home / 10,303,477.20-15,456,965.40-5,509,864.80

Finding the Fourth Proportional to 10,303,477.20, 15,456,965.40 and 5,509,864.80

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Solution

The fourth proportional to 10,303,477.20, 15,456,965.40 and 5,509,864.80 is: 8,265,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303,477.20 : 15,456,965.40 = 5,509,864.80 : x
  2. Step 2: Convert to fraction form
    10,303,477.20/15,456,965.40 = 5,509,864.80/x
  3. Step 3: Cross multiply
    10,303,477.20x = 15,456,965.40 × 5,509,864.80
  4. Step 4: Simplify right side
    10,303,477.20x = 85,165,789,572,277.92
  5. Step 5: Solve for x
    x = 85,165,789,572,277.92/10,303,477.20
  6. Step 6: Final answer
    x = 8,265,732.81

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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.