Home / 685,749,760.44-946,413,174.87-384,416,459.16

Finding the Fourth Proportional to 685,749,760.44, 946,413,174.87 and 384,416,459.16

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Solution

The fourth proportional to 685,749,760.44, 946,413,174.87 and 384,416,459.16 is: 530,538,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,749,760.44 : 946,413,174.87 = 384,416,459.16 : x
  2. Step 2: Convert to fraction form
    685,749,760.44/946,413,174.87 = 384,416,459.16/x
  3. Step 3: Cross multiply
    685,749,760.44x = 946,413,174.87 × 384,416,459.16
  4. Step 4: Simplify right side
    685,749,760.44x = 363,816,801,585,899,328
  5. Step 5: Solve for x
    x = 363,816,801,585,899,328/685,749,760.44
  6. Step 6: Final answer
    x = 530,538,722.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.