Home / 513,216,009.60-769,824,014.40-149,747,107.20

Finding the Fourth Proportional to 513,216,009.60, 769,824,014.40 and 149,747,107.20

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Solution

The fourth proportional to 513,216,009.60, 769,824,014.40 and 149,747,107.20 is: 224,620,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,216,009.60 : 769,824,014.40 = 149,747,107.20 : x
  2. Step 2: Convert to fraction form
    513,216,009.60/769,824,014.40 = 149,747,107.20/x
  3. Step 3: Cross multiply
    513,216,009.60x = 769,824,014.40 × 149,747,107.20
  4. Step 4: Simplify right side
    513,216,009.60x = 115,278,919,209,491,136
  5. Step 5: Solve for x
    x = 115,278,919,209,491,136/513,216,009.60
  6. Step 6: Final answer
    x = 224,620,660.80

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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.