Home / 79,135,603.09-109,213,190.69-49,792,088.28

Finding the Fourth Proportional to 79,135,603.09, 109,213,190.69 and 49,792,088.28

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Solution

The fourth proportional to 79,135,603.09, 109,213,190.69 and 49,792,088.28 is: 68,716,893.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135,603.09 : 109,213,190.69 = 49,792,088.28 : x
  2. Step 2: Convert to fraction form
    79,135,603.09/109,213,190.69 = 49,792,088.28/x
  3. Step 3: Cross multiply
    79,135,603.09x = 109,213,190.69 × 49,792,088.28
  4. Step 4: Simplify right side
    79,135,603.09x = 5,437,952,832,003,549
  5. Step 5: Solve for x
    x = 5,437,952,832,003,549/79,135,603.09
  6. Step 6: Final answer
    x = 68,716,893.78

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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.