Home / 1,382,769,856.91-2,074,835,756.33-645,732,643.64

Finding the Fourth Proportional to 1,382,769,856.91, 2,074,835,756.33 and 645,732,643.64

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Solution

The fourth proportional to 1,382,769,856.91, 2,074,835,756.33 and 645,732,643.64 is: 968,916,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,769,856.91 : 2,074,835,756.33 = 645,732,643.64 : x
  2. Step 2: Convert to fraction form
    1,382,769,856.91/2,074,835,756.33 = 645,732,643.64/x
  3. Step 3: Cross multiply
    1,382,769,856.91x = 2,074,835,756.33 × 645,732,643.64
  4. Step 4: Simplify right side
    1,382,769,856.91x = 1,339,789,178,053,769,728
  5. Step 5: Solve for x
    x = 1,339,789,178,053,769,728/1,382,769,856.91
  6. Step 6: Final answer
    x = 968,916,968.62

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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.