Home / 51,230,490.72-76,840,056.72-12,892,015.20

Finding the Fourth Proportional to 51,230,490.72, 76,840,056.72 and 12,892,015.20

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Solution

The fourth proportional to 51,230,490.72, 76,840,056.72 and 12,892,015.20 is: 19,336,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,230,490.72 : 76,840,056.72 = 12,892,015.20 : x
  2. Step 2: Convert to fraction form
    51,230,490.72/76,840,056.72 = 12,892,015.20/x
  3. Step 3: Cross multiply
    51,230,490.72x = 76,840,056.72 × 12,892,015.20
  4. Step 4: Simplify right side
    51,230,490.72x = 990,623,179,203,102.12
  5. Step 5: Solve for x
    x = 990,623,179,203,102.12/51,230,490.72
  6. Step 6: Final answer
    x = 19,336,593.60

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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.