Home / 1,382,788,716.42-1,908,133,071.39-779,926,117.80

Finding the Fourth Proportional to 1,382,788,716.42, 1,908,133,071.39 and 779,926,117.80

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Solution

The fourth proportional to 1,382,788,716.42, 1,908,133,071.39 and 779,926,117.80 is: 1,076,232,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,788,716.42 : 1,908,133,071.39 = 779,926,117.80 : x
  2. Step 2: Convert to fraction form
    1,382,788,716.42/1,908,133,071.39 = 779,926,117.80/x
  3. Step 3: Cross multiply
    1,382,788,716.42x = 1,908,133,071.39 × 779,926,117.80
  4. Step 4: Simplify right side
    1,382,788,716.42x = 1,488,202,818,614,992,896
  5. Step 5: Solve for x
    x = 1,488,202,818,614,992,896/1,382,788,716.42
  6. Step 6: Final answer
    x = 1,076,232,978.29

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Double scale
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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.