Home / 202,345,057.57-279,119,625.51-121,820,995

Finding the Fourth Proportional to 202,345,057.57, 279,119,625.51 and 121,820,995

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Solution

The fourth proportional to 202,345,057.57, 279,119,625.51 and 121,820,995 is: 168,042,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,345,057.57 : 279,119,625.51 = 121,820,995 : x
  2. Step 2: Convert to fraction form
    202,345,057.57/279,119,625.51 = 121,820,995/x
  3. Step 3: Cross multiply
    202,345,057.57x = 279,119,625.51 × 121,820,995
  4. Step 4: Simplify right side
    202,345,057.57x = 34,002,630,503,655,580
  5. Step 5: Solve for x
    x = 34,002,630,503,655,580/202,345,057.57
  6. Step 6: Final answer
    x = 168,042,802.29

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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.