Home / 528,400,175.12-729,172,240.72-293,465,962.34

Finding the Fourth Proportional to 528,400,175.12, 729,172,240.72 and 293,465,962.34

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Solution

The fourth proportional to 528,400,175.12, 729,172,240.72 and 293,465,962.34 is: 404,971,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,400,175.12 : 729,172,240.72 = 293,465,962.34 : x
  2. Step 2: Convert to fraction form
    528,400,175.12/729,172,240.72 = 293,465,962.34/x
  3. Step 3: Cross multiply
    528,400,175.12x = 729,172,240.72 × 293,465,962.34
  4. Step 4: Simplify right side
    528,400,175.12x = 213,987,233,330,129,376
  5. Step 5: Solve for x
    x = 213,987,233,330,129,376/528,400,175.12
  6. Step 6: Final answer
    x = 404,971,919.78

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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.