Home / 746,773,860.78-1,030,520,918.48-412,239,203.15

Finding the Fourth Proportional to 746,773,860.78, 1,030,520,918.48 and 412,239,203.15

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Solution

The fourth proportional to 746,773,860.78, 1,030,520,918.48 and 412,239,203.15 is: 568,875,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,773,860.78 : 1,030,520,918.48 = 412,239,203.15 : x
  2. Step 2: Convert to fraction form
    746,773,860.78/1,030,520,918.48 = 412,239,203.15/x
  3. Step 3: Cross multiply
    746,773,860.78x = 1,030,520,918.48 × 412,239,203.15
  4. Step 4: Simplify right side
    746,773,860.78x = 424,821,122,256,387,520
  5. Step 5: Solve for x
    x = 424,821,122,256,387,520/746,773,860.78
  6. Step 6: Final answer
    x = 568,875,190.43

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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.