Home / 115,400,785.14-172,826,392.08-66,776,164.38

Finding the Fourth Proportional to 115,400,785.14, 172,826,392.08 and 66,776,164.38

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Solution

The fourth proportional to 115,400,785.14, 172,826,392.08 and 66,776,164.38 is: 100,005,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,400,785.14 : 172,826,392.08 = 66,776,164.38 : x
  2. Step 2: Convert to fraction form
    115,400,785.14/172,826,392.08 = 66,776,164.38/x
  3. Step 3: Cross multiply
    115,400,785.14x = 172,826,392.08 × 66,776,164.38
  4. Step 4: Simplify right side
    115,400,785.14x = 11,540,683,566,736,412
  5. Step 5: Solve for x
    x = 11,540,683,566,736,412/115,400,785.14
  6. Step 6: Final answer
    x = 100,005,243.06

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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.