Home / 767,668,739.60-1,149,235,627.80-509,175,837.20

Finding the Fourth Proportional to 767,668,739.60, 1,149,235,627.80 and 509,175,837.20

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Solution

The fourth proportional to 767,668,739.60, 1,149,235,627.80 and 509,175,837.20 is: 762,259,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,668,739.60 : 1,149,235,627.80 = 509,175,837.20 : x
  2. Step 2: Convert to fraction form
    767,668,739.60/1,149,235,627.80 = 509,175,837.20/x
  3. Step 3: Cross multiply
    767,668,739.60x = 1,149,235,627.80 × 509,175,837.20
  4. Step 4: Simplify right side
    767,668,739.60x = 585,163,012,925,132,544
  5. Step 5: Solve for x
    x = 585,163,012,925,132,544/767,668,739.60
  6. Step 6: Final answer
    x = 762,259,790.90

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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.