Home / 728,698,653,719.80-1,005,635,752,556.10-403,537,945,532.10

Finding the Fourth Proportional to 728,698,653,719.80, 1,005,635,752,556.10 and 403,537,945,532.10

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Solution

The fourth proportional to 728,698,653,719.80, 1,005,635,752,556.10 and 403,537,945,532.10 is: 556,899,870,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,698,653,719.80 : 1,005,635,752,556.10 = 403,537,945,532.10 : x
  2. Step 2: Convert to fraction form
    728,698,653,719.80/1,005,635,752,556.10 = 403,537,945,532.10/x
  3. Step 3: Cross multiply
    728,698,653,719.80x = 1,005,635,752,556.10 × 403,537,945,532.10
  4. Step 4: Simplify right side
    728,698,653,719.80x = 405,812,185,540,115,830,931,456
  5. Step 5: Solve for x
    x = 405,812,185,540,115,830,931,456/728,698,653,719.80
  6. Step 6: Final answer
    x = 556,899,870,019.74

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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.