Home / 74,741,879.16-103,143,942.54-40,403,063.16

Finding the Fourth Proportional to 74,741,879.16, 103,143,942.54 and 40,403,063.16

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Solution

The fourth proportional to 74,741,879.16, 103,143,942.54 and 40,403,063.16 is: 55,756,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,741,879.16 : 103,143,942.54 = 40,403,063.16 : x
  2. Step 2: Convert to fraction form
    74,741,879.16/103,143,942.54 = 40,403,063.16/x
  3. Step 3: Cross multiply
    74,741,879.16x = 103,143,942.54 × 40,403,063.16
  4. Step 4: Simplify right side
    74,741,879.16x = 4,167,331,225,015,030.50
  5. Step 5: Solve for x
    x = 4,167,331,225,015,030.50/74,741,879.16
  6. Step 6: Final answer
    x = 55,756,307.87

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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.