Home / 640,421,382,199.45-883,797,768,355.68-351,389,564,987.71

Finding the Fourth Proportional to 640,421,382,199.45, 883,797,768,355.68 and 351,389,564,987.71

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Solution

The fourth proportional to 640,421,382,199.45, 883,797,768,355.68 and 351,389,564,987.71 is: 484,926,521,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,421,382,199.45 : 883,797,768,355.68 = 351,389,564,987.71 : x
  2. Step 2: Convert to fraction form
    640,421,382,199.45/883,797,768,355.68 = 351,389,564,987.71/x
  3. Step 3: Cross multiply
    640,421,382,199.45x = 883,797,768,355.68 × 351,389,564,987.71
  4. Step 4: Simplify right side
    640,421,382,199.45x = 310,557,313,359,611,353,366,528
  5. Step 5: Solve for x
    x = 310,557,313,359,611,353,366,528/640,421,382,199.45
  6. Step 6: Final answer
    x = 484,926,521,805.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.