Home / 839,810,116.80-1,259,715,175.20-430,907,601.60

Finding the Fourth Proportional to 839,810,116.80, 1,259,715,175.20 and 430,907,601.60

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Solution

The fourth proportional to 839,810,116.80, 1,259,715,175.20 and 430,907,601.60 is: 646,361,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,116.80 : 1,259,715,175.20 = 430,907,601.60 : x
  2. Step 2: Convert to fraction form
    839,810,116.80/1,259,715,175.20 = 430,907,601.60/x
  3. Step 3: Cross multiply
    839,810,116.80x = 1,259,715,175.20 × 430,907,601.60
  4. Step 4: Simplify right side
    839,810,116.80x = 542,820,844,844,555,840
  5. Step 5: Solve for x
    x = 542,820,844,844,555,840/839,810,116.80
  6. Step 6: Final answer
    x = 646,361,402.40

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1.5x scale

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.