Home / 405,999,666.57-560,279,954.54-220,360,720.53

Finding the Fourth Proportional to 405,999,666.57, 560,279,954.54 and 220,360,720.53

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Solution

The fourth proportional to 405,999,666.57, 560,279,954.54 and 220,360,720.53 is: 304,098,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,999,666.57 : 560,279,954.54 = 220,360,720.53 : x
  2. Step 2: Convert to fraction form
    405,999,666.57/560,279,954.54 = 220,360,720.53/x
  3. Step 3: Cross multiply
    405,999,666.57x = 560,279,954.54 × 220,360,720.53
  4. Step 4: Simplify right side
    405,999,666.57x = 123,463,694,479,848,240
  5. Step 5: Solve for x
    x = 123,463,694,479,848,240/405,999,666.57
  6. Step 6: Final answer
    x = 304,098,019.40

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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.