Home / 392,512,975,819.84-542,114,716,332.96-263,831,015,935.04

Finding the Fourth Proportional to 392,512,975,819.84, 542,114,716,332.96 and 263,831,015,935.04

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Solution

The fourth proportional to 392,512,975,819.84, 542,114,716,332.96 and 263,831,015,935.04 is: 364,387,129,023.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,512,975,819.84 : 542,114,716,332.96 = 263,831,015,935.04 : x
  2. Step 2: Convert to fraction form
    392,512,975,819.84/542,114,716,332.96 = 263,831,015,935.04/x
  3. Step 3: Cross multiply
    392,512,975,819.84x = 542,114,716,332.96 × 263,831,015,935.04
  4. Step 4: Simplify right side
    392,512,975,819.84x = 143,026,676,363,460,874,338,304
  5. Step 5: Solve for x
    x = 143,026,676,363,460,874,338,304/392,512,975,819.84
  6. Step 6: Final answer
    x = 364,387,129,023.50

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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.