Home / 1,322,378,821.86-1,983,855,210.96-402,231,245.64

Finding the Fourth Proportional to 1,322,378,821.86, 1,983,855,210.96 and 402,231,245.64

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Solution

The fourth proportional to 1,322,378,821.86, 1,983,855,210.96 and 402,231,245.64 is: 603,434,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,378,821.86 : 1,983,855,210.96 = 402,231,245.64 : x
  2. Step 2: Convert to fraction form
    1,322,378,821.86/1,983,855,210.96 = 402,231,245.64/x
  3. Step 3: Cross multiply
    1,322,378,821.86x = 1,983,855,210.96 × 402,231,245.64
  4. Step 4: Simplify right side
    1,322,378,821.86x = 797,968,552,673,845,760
  5. Step 5: Solve for x
    x = 797,968,552,673,845,760/1,322,378,821.86
  6. Step 6: Final answer
    x = 603,434,159.32

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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.