Home / 1,145,482,681.42-1,717,520,832.38-445,157,103.64

Finding the Fourth Proportional to 1,145,482,681.42, 1,717,520,832.38 and 445,157,103.64

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Solution

The fourth proportional to 1,145,482,681.42, 1,717,520,832.38 and 445,157,103.64 is: 667,462,382.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,482,681.42 : 1,717,520,832.38 = 445,157,103.64 : x
  2. Step 2: Convert to fraction form
    1,145,482,681.42/1,717,520,832.38 = 445,157,103.64/x
  3. Step 3: Cross multiply
    1,145,482,681.42x = 1,717,520,832.38 × 445,157,103.64
  4. Step 4: Simplify right side
    1,145,482,681.42x = 764,566,599,183,642,752
  5. Step 5: Solve for x
    x = 764,566,599,183,642,752/1,145,482,681.42
  6. Step 6: Final answer
    x = 667,462,382.09

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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.