Home / 7,128,098.40-10,673,485.20-5,224,533.60

Finding the Fourth Proportional to 7,128,098.40, 10,673,485.20 and 5,224,533.60

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Solution

The fourth proportional to 7,128,098.40, 10,673,485.20 and 5,224,533.60 is: 7,823,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,098.40 : 10,673,485.20 = 5,224,533.60 : x
  2. Step 2: Convert to fraction form
    7,128,098.40/10,673,485.20 = 5,224,533.60/x
  3. Step 3: Cross multiply
    7,128,098.40x = 10,673,485.20 × 5,224,533.60
  4. Step 4: Simplify right side
    7,128,098.40x = 55,763,982,056,502.71
  5. Step 5: Solve for x
    x = 55,763,982,056,502.71/7,128,098.40
  6. Step 6: Final answer
    x = 7,823,121.81

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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.