Home / 392,512,975,820.84-542,114,716,334.33-263,831,015,936.04

Finding the Fourth Proportional to 392,512,975,820.84, 542,114,716,334.33 and 263,831,015,936.04

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Solution

The fourth proportional to 392,512,975,820.84, 542,114,716,334.33 and 263,831,015,936.04 is: 364,387,129,024.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,512,975,820.84 : 542,114,716,334.33 = 263,831,015,936.04 : x
  2. Step 2: Convert to fraction form
    392,512,975,820.84/542,114,716,334.33 = 263,831,015,936.04/x
  3. Step 3: Cross multiply
    392,512,975,820.84x = 542,114,716,334.33 × 263,831,015,936.04
  4. Step 4: Simplify right side
    392,512,975,820.84x = 143,026,676,364,364,428,083,200
  5. Step 5: Solve for x
    x = 143,026,676,364,364,428,083,200/392,512,975,820.84
  6. Step 6: Final answer
    x = 364,387,129,024.87

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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.