Home / 168,863,763,144.12-253,338,518,532.92-78,170,563,782.64

Finding the Fourth Proportional to 168,863,763,144.12, 253,338,518,532.92 and 78,170,563,782.64

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Solution

The fourth proportional to 168,863,763,144.12, 253,338,518,532.92 and 78,170,563,782.64 is: 117,275,692,859.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,863,763,144.12 : 253,338,518,532.92 = 78,170,563,782.64 : x
  2. Step 2: Convert to fraction form
    168,863,763,144.12/253,338,518,532.92 = 78,170,563,782.64/x
  3. Step 3: Cross multiply
    168,863,763,144.12x = 253,338,518,532.92 × 78,170,563,782.64
  4. Step 4: Simplify right side
    168,863,763,144.12x = 19,803,614,821,577,148,858,368
  5. Step 5: Solve for x
    x = 19,803,614,821,577,148,858,368/168,863,763,144.12
  6. Step 6: Final answer
    x = 117,275,692,859.43

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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.