Home / 1,080,998,719.20-1,621,498,078.80-621,833,695.20

Finding the Fourth Proportional to 1,080,998,719.20, 1,621,498,078.80 and 621,833,695.20

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Solution

The fourth proportional to 1,080,998,719.20, 1,621,498,078.80 and 621,833,695.20 is: 932,750,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,998,719.20 : 1,621,498,078.80 = 621,833,695.20 : x
  2. Step 2: Convert to fraction form
    1,080,998,719.20/1,621,498,078.80 = 621,833,695.20/x
  3. Step 3: Cross multiply
    1,080,998,719.20x = 1,621,498,078.80 × 621,833,695.20
  4. Step 4: Simplify right side
    1,080,998,719.20x = 1,008,302,142,099,904,768
  5. Step 5: Solve for x
    x = 1,008,302,142,099,904,768/1,080,998,719.20
  6. Step 6: Final answer
    x = 932,750,542.80

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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.