Home / 528,400,174.34-729,172,239.65-293,465,961.56

Finding the Fourth Proportional to 528,400,174.34, 729,172,239.65 and 293,465,961.56

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Solution

The fourth proportional to 528,400,174.34, 729,172,239.65 and 293,465,961.56 is: 404,971,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,400,174.34 : 729,172,239.65 = 293,465,961.56 : x
  2. Step 2: Convert to fraction form
    528,400,174.34/729,172,239.65 = 293,465,961.56/x
  3. Step 3: Cross multiply
    528,400,174.34x = 729,172,239.65 × 293,465,961.56
  4. Step 4: Simplify right side
    528,400,174.34x = 213,987,232,452,101,600
  5. Step 5: Solve for x
    x = 213,987,232,452,101,600/528,400,174.34
  6. Step 6: Final answer
    x = 404,971,918.71

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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.