Home / 1,344,887,385.31-1,855,990,742.39-780,329,635.75

Finding the Fourth Proportional to 1,344,887,385.31, 1,855,990,742.39 and 780,329,635.75

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Solution

The fourth proportional to 1,344,887,385.31, 1,855,990,742.39 and 780,329,635.75 is: 1,076,881,674.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,887,385.31 : 1,855,990,742.39 = 780,329,635.75 : x
  2. Step 2: Convert to fraction form
    1,344,887,385.31/1,855,990,742.39 = 780,329,635.75/x
  3. Step 3: Cross multiply
    1,344,887,385.31x = 1,855,990,742.39 × 780,329,635.75
  4. Step 4: Simplify right side
    1,344,887,385.31x = 1,448,284,579,964,560,896
  5. Step 5: Solve for x
    x = 1,448,284,579,964,560,896/1,344,887,385.31
  6. Step 6: Final answer
    x = 1,076,881,674.84

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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.