Home / 821,382,786.68-1,133,563,858.92-464,026,621.10

Finding the Fourth Proportional to 821,382,786.68, 1,133,563,858.92 and 464,026,621.10

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Solution

The fourth proportional to 821,382,786.68, 1,133,563,858.92 and 464,026,621.10 is: 640,388,154.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,382,786.68 : 1,133,563,858.92 = 464,026,621.10 : x
  2. Step 2: Convert to fraction form
    821,382,786.68/1,133,563,858.92 = 464,026,621.10/x
  3. Step 3: Cross multiply
    821,382,786.68x = 1,133,563,858.92 × 464,026,621.10
  4. Step 4: Simplify right side
    821,382,786.68x = 526,003,807,255,724,736
  5. Step 5: Solve for x
    x = 526,003,807,255,724,736/821,382,786.68
  6. Step 6: Final answer
    x = 640,388,154.93

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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.