Home / 168,863,763,143.12-253,338,518,531.42-78,170,563,781.64

Finding the Fourth Proportional to 168,863,763,143.12, 253,338,518,531.42 and 78,170,563,781.64

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Solution

The fourth proportional to 168,863,763,143.12, 253,338,518,531.42 and 78,170,563,781.64 is: 117,275,692,857.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,863,763,143.12 : 253,338,518,531.42 = 78,170,563,781.64 : x
  2. Step 2: Convert to fraction form
    168,863,763,143.12/253,338,518,531.42 = 78,170,563,781.64/x
  3. Step 3: Cross multiply
    168,863,763,143.12x = 253,338,518,531.42 × 78,170,563,781.64
  4. Step 4: Simplify right side
    168,863,763,143.12x = 19,803,614,821,206,556,934,144
  5. Step 5: Solve for x
    x = 19,803,614,821,206,556,934,144/168,863,763,143.12
  6. Step 6: Final answer
    x = 117,275,692,857.93

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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.