Home / 140,004,003.10-210,006,004.65-91,631,062.30

Finding the Fourth Proportional to 140,004,003.10, 210,006,004.65 and 91,631,062.30

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Solution

The fourth proportional to 140,004,003.10, 210,006,004.65 and 91,631,062.30 is: 137,446,593.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,004,003.10 : 210,006,004.65 = 91,631,062.30 : x
  2. Step 2: Convert to fraction form
    140,004,003.10/210,006,004.65 = 91,631,062.30/x
  3. Step 3: Cross multiply
    140,004,003.10x = 210,006,004.65 × 91,631,062.30
  4. Step 4: Simplify right side
    140,004,003.10x = 19,243,073,295,458,240
  5. Step 5: Solve for x
    x = 19,243,073,295,458,240/140,004,003.10
  6. Step 6: Final answer
    x = 137,446,593.45

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Double scale
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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.