Home / 12,529,657.20-18,794,485.80-7,490,809.20

Finding the Fourth Proportional to 12,529,657.20, 18,794,485.80 and 7,490,809.20

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Solution

The fourth proportional to 12,529,657.20, 18,794,485.80 and 7,490,809.20 is: 11,236,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529,657.20 : 18,794,485.80 = 7,490,809.20 : x
  2. Step 2: Convert to fraction form
    12,529,657.20/18,794,485.80 = 7,490,809.20/x
  3. Step 3: Cross multiply
    12,529,657.20x = 18,794,485.80 × 7,490,809.20
  4. Step 4: Simplify right side
    12,529,657.20x = 140,785,907,139,909.38
  5. Step 5: Solve for x
    x = 140,785,907,139,909.38/12,529,657.20
  6. Step 6: Final answer
    x = 11,236,213.80

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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.