Home / 1,272,771,839.36-1,756,578,043.82-770,965,899.36

Finding the Fourth Proportional to 1,272,771,839.36, 1,756,578,043.82 and 770,965,899.36

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Solution

The fourth proportional to 1,272,771,839.36, 1,756,578,043.82 and 770,965,899.36 is: 1,064,025,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,771,839.36 : 1,756,578,043.82 = 770,965,899.36 : x
  2. Step 2: Convert to fraction form
    1,272,771,839.36/1,756,578,043.82 = 770,965,899.36/x
  3. Step 3: Cross multiply
    1,272,771,839.36x = 1,756,578,043.82 × 770,965,899.36
  4. Step 4: Simplify right side
    1,272,771,839.36x = 1,354,261,771,345,056,000
  5. Step 5: Solve for x
    x = 1,354,261,771,345,056,000/1,272,771,839.36
  6. Step 6: Final answer
    x = 1,064,025,561.74

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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.