Home / 560,080,216.68-772,890,438.24-309,179,219.64

Finding the Fourth Proportional to 560,080,216.68, 772,890,438.24 and 309,179,219.64

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Solution

The fourth proportional to 560,080,216.68, 772,890,438.24 and 309,179,219.64 is: 426,656,138.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,080,216.68 : 772,890,438.24 = 309,179,219.64 : x
  2. Step 2: Convert to fraction form
    560,080,216.68/772,890,438.24 = 309,179,219.64/x
  3. Step 3: Cross multiply
    560,080,216.68x = 772,890,438.24 × 309,179,219.64
  4. Step 4: Simplify right side
    560,080,216.68x = 238,961,662,562,260,800
  5. Step 5: Solve for x
    x = 238,961,662,562,260,800/560,080,216.68
  6. Step 6: Final answer
    x = 426,656,138.61

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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.