Home / 69,343,631.82-104,012,925.05-20,820,224.48

Finding the Fourth Proportional to 69,343,631.82, 104,012,925.05 and 20,820,224.48

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Solution

The fourth proportional to 69,343,631.82, 104,012,925.05 and 20,820,224.48 is: 31,229,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,343,631.82 : 104,012,925.05 = 20,820,224.48 : x
  2. Step 2: Convert to fraction form
    69,343,631.82/104,012,925.05 = 20,820,224.48/x
  3. Step 3: Cross multiply
    69,343,631.82x = 104,012,925.05 × 20,820,224.48
  4. Step 4: Simplify right side
    69,343,631.82x = 2,165,572,447,894,401.25
  5. Step 5: Solve for x
    x = 2,165,572,447,894,401.25/69,343,631.82
  6. Step 6: Final answer
    x = 31,229,579.29

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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.