Home / 787,386,568.32-1,181,080,267.20-205,119,273.60

Finding the Fourth Proportional to 787,386,568.32, 1,181,080,267.20 and 205,119,273.60

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Solution

The fourth proportional to 787,386,568.32, 1,181,080,267.20 and 205,119,273.60 is: 307,679,018.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,386,568.32 : 1,181,080,267.20 = 205,119,273.60 : x
  2. Step 2: Convert to fraction form
    787,386,568.32/1,181,080,267.20 = 205,119,273.60/x
  3. Step 3: Cross multiply
    787,386,568.32x = 1,181,080,267.20 × 205,119,273.60
  4. Step 4: Simplify right side
    787,386,568.32x = 242,262,326,471,357,920
  5. Step 5: Solve for x
    x = 242,262,326,471,357,920/787,386,568.32
  6. Step 6: Final answer
    x = 307,679,018.44

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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.