Home / 1,428,388,008.56-1,971,167,529.84-801,856,270.88

Finding the Fourth Proportional to 1,428,388,008.56, 1,971,167,529.84 and 801,856,270.88

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Solution

The fourth proportional to 1,428,388,008.56, 1,971,167,529.84 and 801,856,270.88 is: 1,106,557,206.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,388,008.56 : 1,971,167,529.84 = 801,856,270.88 : x
  2. Step 2: Convert to fraction form
    1,428,388,008.56/1,971,167,529.84 = 801,856,270.88/x
  3. Step 3: Cross multiply
    1,428,388,008.56x = 1,971,167,529.84 × 801,856,270.88
  4. Step 4: Simplify right side
    1,428,388,008.56x = 1,580,593,044,757,243,392
  5. Step 5: Solve for x
    x = 1,580,593,044,757,243,392/1,428,388,008.56
  6. Step 6: Final answer
    x = 1,106,557,206.64

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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.