Home / 785,824,420.80-1,178,740,713.60-203,517,883.20

Finding the Fourth Proportional to 785,824,420.80, 1,178,740,713.60 and 203,517,883.20

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Solution

The fourth proportional to 785,824,420.80, 1,178,740,713.60 and 203,517,883.20 is: 305,277,882.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,824,420.80 : 1,178,740,713.60 = 203,517,883.20 : x
  2. Step 2: Convert to fraction form
    785,824,420.80/1,178,740,713.60 = 203,517,883.20/x
  3. Step 3: Cross multiply
    785,824,420.80x = 1,178,740,713.60 × 203,517,883.20
  4. Step 4: Simplify right side
    785,824,420.80x = 239,894,814,873,529,408
  5. Step 5: Solve for x
    x = 239,894,814,873,529,408/785,824,420.80
  6. Step 6: Final answer
    x = 305,277,882.09

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1.5x scale

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.