Home / 1,388,049,157.83-2,082,418,343.03-688,869,435.00

Finding the Fourth Proportional to 1,388,049,157.83, 2,082,418,343.03 and 688,869,435.00

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Solution

The fourth proportional to 1,388,049,157.83, 2,082,418,343.03 and 688,869,435.00 is: 1,033,475,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,049,157.83 : 2,082,418,343.03 = 688,869,435.00 : x
  2. Step 2: Convert to fraction form
    1,388,049,157.83/2,082,418,343.03 = 688,869,435.00/x
  3. Step 3: Cross multiply
    1,388,049,157.83x = 2,082,418,343.03 × 688,869,435.00
  4. Step 4: Simplify right side
    1,388,049,157.83x = 1,434,514,347,400,412,672
  5. Step 5: Solve for x
    x = 1,434,514,347,400,412,672/1,388,049,157.83
  6. Step 6: Final answer
    x = 1,033,475,175.79

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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.