Home / 563,863,120.32-778,067,997.15-312,978,086.44

Finding the Fourth Proportional to 563,863,120.32, 778,067,997.15 and 312,978,086.44

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Solution

The fourth proportional to 563,863,120.32, 778,067,997.15 and 312,978,086.44 is: 431,874,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,863,120.32 : 778,067,997.15 = 312,978,086.44 : x
  2. Step 2: Convert to fraction form
    563,863,120.32/778,067,997.15 = 312,978,086.44/x
  3. Step 3: Cross multiply
    563,863,120.32x = 778,067,997.15 × 312,978,086.44
  4. Step 4: Simplify right side
    563,863,120.32x = 243,518,232,868,210,368
  5. Step 5: Solve for x
    x = 243,518,232,868,210,368/563,863,120.32
  6. Step 6: Final answer
    x = 431,874,730.04

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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.