Home / 1,153,171,508,647.80-1,728,546,413,556.20-387,994,009,913.28

Finding the Fourth Proportional to 1,153,171,508,647.80, 1,728,546,413,556.20 and 387,994,009,913.28

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Solution

The fourth proportional to 1,153,171,508,647.80, 1,728,546,413,556.20 and 387,994,009,913.28 is: 581,583,614,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,171,508,647.80 : 1,728,546,413,556.20 = 387,994,009,913.28 : x
  2. Step 2: Convert to fraction form
    1,153,171,508,647.80/1,728,546,413,556.20 = 387,994,009,913.28/x
  3. Step 3: Cross multiply
    1,153,171,508,647.80x = 1,728,546,413,556.20 × 387,994,009,913.28
  4. Step 4: Simplify right side
    1,153,171,508,647.80x = 670,665,654,316,888,917,803,008
  5. Step 5: Solve for x
    x = 670,665,654,316,888,917,803,008/1,153,171,508,647.80
  6. Step 6: Final answer
    x = 581,583,614,655.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.