Home / 1,405,451,049.16-1,939,522,631.68-778,959,923.62

Finding the Fourth Proportional to 1,405,451,049.16, 1,939,522,631.68 and 778,959,923.62

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Solution

The fourth proportional to 1,405,451,049.16, 1,939,522,631.68 and 778,959,923.62 is: 1,074,964,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,451,049.16 : 1,939,522,631.68 = 778,959,923.62 : x
  2. Step 2: Convert to fraction form
    1,405,451,049.16/1,939,522,631.68 = 778,959,923.62/x
  3. Step 3: Cross multiply
    1,405,451,049.16x = 1,939,522,631.68 × 778,959,923.62
  4. Step 4: Simplify right side
    1,405,451,049.16x = 1,510,810,401,032,714,240
  5. Step 5: Solve for x
    x = 1,510,810,401,032,714,240/1,405,451,049.16
  6. Step 6: Final answer
    x = 1,074,964,796.49

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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.