Home / 728,698,481,382.05-1,005,635,514,729.50-403,537,773,194.25

Finding the Fourth Proportional to 728,698,481,382.05, 1,005,635,514,729.50 and 403,537,773,194.25

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Solution

The fourth proportional to 728,698,481,382.05, 1,005,635,514,729.50 and 403,537,773,194.25 is: 556,899,632,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,698,481,382.05 : 1,005,635,514,729.50 = 403,537,773,194.25 : x
  2. Step 2: Convert to fraction form
    728,698,481,382.05/1,005,635,514,729.50 = 403,537,773,194.25/x
  3. Step 3: Cross multiply
    728,698,481,382.05x = 1,005,635,514,729.50 × 403,537,773,194.25
  4. Step 4: Simplify right side
    728,698,481,382.05x = 405,811,916,258,995,802,734,592
  5. Step 5: Solve for x
    x = 405,811,916,258,995,802,734,592/728,698,481,382.05
  6. Step 6: Final answer
    x = 556,899,632,189.89

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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.