Home / 1,153,171,508,649.40-1,728,546,413,558.40-387,994,009,914.81

Finding the Fourth Proportional to 1,153,171,508,649.40, 1,728,546,413,558.40 and 387,994,009,914.81

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Solution

The fourth proportional to 1,153,171,508,649.40, 1,728,546,413,558.40 and 387,994,009,914.81 is: 581,583,614,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,171,508,649.40 : 1,728,546,413,558.40 = 387,994,009,914.81 : x
  2. Step 2: Convert to fraction form
    1,153,171,508,649.40/1,728,546,413,558.40 = 387,994,009,914.81/x
  3. Step 3: Cross multiply
    1,153,171,508,649.40x = 1,728,546,413,558.40 × 387,994,009,914.81
  4. Step 4: Simplify right side
    1,153,171,508,649.40x = 670,665,654,320,387,034,447,872
  5. Step 5: Solve for x
    x = 670,665,654,320,387,034,447,872/1,153,171,508,649.40
  6. Step 6: Final answer
    x = 581,583,614,657.52

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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.