Home / 811,842,959.84-1,120,343,284.26-440,564,991.22

Finding the Fourth Proportional to 811,842,959.84, 1,120,343,284.26 and 440,564,991.22

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Solution

The fourth proportional to 811,842,959.84, 1,120,343,284.26 and 440,564,991.22 is: 607,979,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,842,959.84 : 1,120,343,284.26 = 440,564,991.22 : x
  2. Step 2: Convert to fraction form
    811,842,959.84/1,120,343,284.26 = 440,564,991.22/x
  3. Step 3: Cross multiply
    811,842,959.84x = 1,120,343,284.26 × 440,564,991.22
  4. Step 4: Simplify right side
    811,842,959.84x = 493,584,029,193,392,896
  5. Step 5: Solve for x
    x = 493,584,029,193,392,896/811,842,959.84
  6. Step 6: Final answer
    x = 607,979,687.71

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1.5x scale

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.