Home / 1,388,111,860.10-2,082,094,457.45-455,311,836.20

Finding the Fourth Proportional to 1,388,111,860.10, 2,082,094,457.45 and 455,311,836.20

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Solution

The fourth proportional to 1,388,111,860.10, 2,082,094,457.45 and 455,311,836.20 is: 682,943,700.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,111,860.10 : 2,082,094,457.45 = 455,311,836.20 : x
  2. Step 2: Convert to fraction form
    1,388,111,860.10/2,082,094,457.45 = 455,311,836.20/x
  3. Step 3: Cross multiply
    1,388,111,860.10x = 2,082,094,457.45 × 455,311,836.20
  4. Step 4: Simplify right side
    1,388,111,860.10x = 948,002,250,566,330,880
  5. Step 5: Solve for x
    x = 948,002,250,566,330,880/1,388,111,860.10
  6. Step 6: Final answer
    x = 682,943,700.59

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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.