Home / 387,088,768.40-580,633,152.60-193,597,005.20

Finding the Fourth Proportional to 387,088,768.40, 580,633,152.60 and 193,597,005.20

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Solution

The fourth proportional to 387,088,768.40, 580,633,152.60 and 193,597,005.20 is: 290,395,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,088,768.40 : 580,633,152.60 = 193,597,005.20 : x
  2. Step 2: Convert to fraction form
    387,088,768.40/580,633,152.60 = 193,597,005.20/x
  3. Step 3: Cross multiply
    387,088,768.40x = 580,633,152.60 × 193,597,005.20
  4. Step 4: Simplify right side
    387,088,768.40x = 112,408,839,463,194,592
  5. Step 5: Solve for x
    x = 112,408,839,463,194,592/387,088,768.40
  6. Step 6: Final answer
    x = 290,395,507.80

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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.