Home / 405,981,509.48-560,255,036.10-220,342,527.56

Finding the Fourth Proportional to 405,981,509.48, 560,255,036.10 and 220,342,527.56

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Solution

The fourth proportional to 405,981,509.48, 560,255,036.10 and 220,342,527.56 is: 304,072,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,981,509.48 : 560,255,036.10 = 220,342,527.56 : x
  2. Step 2: Convert to fraction form
    405,981,509.48/560,255,036.10 = 220,342,527.56/x
  3. Step 3: Cross multiply
    405,981,509.48x = 560,255,036.10 × 220,342,527.56
  4. Step 4: Simplify right side
    405,981,509.48x = 123,448,010,732,493,056
  5. Step 5: Solve for x
    x = 123,448,010,732,493,056/405,981,509.48
  6. Step 6: Final answer
    x = 304,072,988.18

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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.