Home / 1,080,963,722,347.40-1,491,631,338,653-641,425,356,547.70

Finding the Fourth Proportional to 1,080,963,722,347.40, 1,491,631,338,653 and 641,425,356,547.70

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Solution

The fourth proportional to 1,080,963,722,347.40, 1,491,631,338,653 and 641,425,356,547.70 is: 885,108,485,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,963,722,347.40 : 1,491,631,338,653 = 641,425,356,547.70 : x
  2. Step 2: Convert to fraction form
    1,080,963,722,347.40/1,491,631,338,653 = 641,425,356,547.70/x
  3. Step 3: Cross multiply
    1,080,963,722,347.40x = 1,491,631,338,653 × 641,425,356,547.70
  4. Step 4: Simplify right side
    1,080,963,722,347.40x = 956,770,163,233,223,524,483,072
  5. Step 5: Solve for x
    x = 956,770,163,233,223,524,483,072/1,080,963,722,347.40
  6. Step 6: Final answer
    x = 885,108,485,560.94

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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.