Home / 1,388,111,853.30-2,082,094,447.28-455,311,829.38

Finding the Fourth Proportional to 1,388,111,853.30, 2,082,094,447.28 and 455,311,829.38

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Solution

The fourth proportional to 1,388,111,853.30, 2,082,094,447.28 and 455,311,829.38 is: 682,943,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,111,853.30 : 2,082,094,447.28 = 455,311,829.38 : x
  2. Step 2: Convert to fraction form
    1,388,111,853.30/2,082,094,447.28 = 455,311,829.38/x
  3. Step 3: Cross multiply
    1,388,111,853.30x = 2,082,094,447.28 × 455,311,829.38
  4. Step 4: Simplify right side
    1,388,111,853.30x = 948,002,231,732,996,736
  5. Step 5: Solve for x
    x = 948,002,231,732,996,736/1,388,111,853.30
  6. Step 6: Final answer
    x = 682,943,690.37

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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.