Home / 100,051,949.10-137,962,047.69-65,179,971.66

Finding the Fourth Proportional to 100,051,949.10, 137,962,047.69 and 65,179,971.66

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Solution

The fourth proportional to 100,051,949.10, 137,962,047.69 and 65,179,971.66 is: 89,876,933.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,051,949.10 : 137,962,047.69 = 65,179,971.66 : x
  2. Step 2: Convert to fraction form
    100,051,949.10/137,962,047.69 = 65,179,971.66/x
  3. Step 3: Cross multiply
    100,051,949.10x = 137,962,047.69 × 65,179,971.66
  4. Step 4: Simplify right side
    100,051,949.10x = 8,992,362,358,589,768
  5. Step 5: Solve for x
    x = 8,992,362,358,589,768/100,051,949.10
  6. Step 6: Final answer
    x = 89,876,933.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.