Home / 405,999,667.14-560,279,955.31-220,360,721.10

Finding the Fourth Proportional to 405,999,667.14, 560,279,955.31 and 220,360,721.10

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Solution

The fourth proportional to 405,999,667.14, 560,279,955.31 and 220,360,721.10 is: 304,098,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,999,667.14 : 560,279,955.31 = 220,360,721.10 : x
  2. Step 2: Convert to fraction form
    405,999,667.14/560,279,955.31 = 220,360,721.10/x
  3. Step 3: Cross multiply
    405,999,667.14x = 560,279,955.31 × 220,360,721.10
  4. Step 4: Simplify right side
    405,999,667.14x = 123,463,694,966,084,160
  5. Step 5: Solve for x
    x = 123,463,694,966,084,160/405,999,667.14
  6. Step 6: Final answer
    x = 304,098,020.17

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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.