Home / 856,065,836.40-1,181,399,934.24-816,839,512.80

Finding the Fourth Proportional to 856,065,836.40, 1,181,399,934.24 and 816,839,512.80

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Solution

The fourth proportional to 856,065,836.40, 1,181,399,934.24 and 816,839,512.80 is: 1,127,266,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,065,836.40 : 1,181,399,934.24 = 816,839,512.80 : x
  2. Step 2: Convert to fraction form
    856,065,836.40/1,181,399,934.24 = 816,839,512.80/x
  3. Step 3: Cross multiply
    856,065,836.40x = 1,181,399,934.24 × 816,839,512.80
  4. Step 4: Simplify right side
    856,065,836.40x = 965,014,146,706,553,600
  5. Step 5: Solve for x
    x = 965,014,146,706,553,600/856,065,836.40
  6. Step 6: Final answer
    x = 1,127,266,275.18

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Double scale
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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.