Home / 1,153,171,508,648.20-1,728,546,413,556.90-387,994,009,913.72

Finding the Fourth Proportional to 1,153,171,508,648.20, 1,728,546,413,556.90 and 387,994,009,913.72

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Solution

The fourth proportional to 1,153,171,508,648.20, 1,728,546,413,556.90 and 387,994,009,913.72 is: 581,583,614,655.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,171,508,648.20 : 1,728,546,413,556.90 = 387,994,009,913.72 : x
  2. Step 2: Convert to fraction form
    1,153,171,508,648.20/1,728,546,413,556.90 = 387,994,009,913.72/x
  3. Step 3: Cross multiply
    1,153,171,508,648.20x = 1,728,546,413,556.90 × 387,994,009,913.72
  4. Step 4: Simplify right side
    1,153,171,508,648.20x = 670,665,654,317,920,917,913,600
  5. Step 5: Solve for x
    x = 670,665,654,317,920,917,913,600/1,153,171,508,648.20
  6. Step 6: Final answer
    x = 581,583,614,655.99

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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.