Home / 1,382,769,855.91-2,074,835,754.83-645,732,642.64

Finding the Fourth Proportional to 1,382,769,855.91, 2,074,835,754.83 and 645,732,642.64

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Solution

The fourth proportional to 1,382,769,855.91, 2,074,835,754.83 and 645,732,642.64 is: 968,916,967.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,769,855.91 : 2,074,835,754.83 = 645,732,642.64 : x
  2. Step 2: Convert to fraction form
    1,382,769,855.91/2,074,835,754.83 = 645,732,642.64/x
  3. Step 3: Cross multiply
    1,382,769,855.91x = 2,074,835,754.83 × 645,732,642.64
  4. Step 4: Simplify right side
    1,382,769,855.91x = 1,339,789,175,006,762,496
  5. Step 5: Solve for x
    x = 1,339,789,175,006,762,496/1,382,769,855.91
  6. Step 6: Final answer
    x = 968,916,967.12

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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.