Home / 115,400,783.64-172,826,389.84-66,776,162.88

Finding the Fourth Proportional to 115,400,783.64, 172,826,389.84 and 66,776,162.88

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Solution

The fourth proportional to 115,400,783.64, 172,826,389.84 and 66,776,162.88 is: 100,005,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,400,783.64 : 172,826,389.84 = 66,776,162.88 : x
  2. Step 2: Convert to fraction form
    115,400,783.64/172,826,389.84 = 66,776,162.88/x
  3. Step 3: Cross multiply
    115,400,783.64x = 172,826,389.84 × 66,776,162.88
  4. Step 4: Simplify right side
    115,400,783.64x = 11,540,683,157,584,338
  5. Step 5: Solve for x
    x = 11,540,683,157,584,338/115,400,783.64
  6. Step 6: Final answer
    x = 100,005,240.81

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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.