Home / 810,559,078.80-1,119,120,619.38-513,464,965.44

Finding the Fourth Proportional to 810,559,078.80, 1,119,120,619.38 and 513,464,965.44

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Solution

The fourth proportional to 810,559,078.80, 1,119,120,619.38 and 513,464,965.44 is: 708,929,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,559,078.80 : 1,119,120,619.38 = 513,464,965.44 : x
  2. Step 2: Convert to fraction form
    810,559,078.80/1,119,120,619.38 = 513,464,965.44/x
  3. Step 3: Cross multiply
    810,559,078.80x = 1,119,120,619.38 × 513,464,965.44
  4. Step 4: Simplify right side
    810,559,078.80x = 574,629,230,153,143,168
  5. Step 5: Solve for x
    x = 574,629,230,153,143,168/810,559,078.80
  6. Step 6: Final answer
    x = 708,929,484.82

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Double scale
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1.5x scale

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.