Home / 516,224,314.65-712,389,656.73-281,274,975.12

Finding the Fourth Proportional to 516,224,314.65, 712,389,656.73 and 281,274,975.12

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Solution

The fourth proportional to 516,224,314.65, 712,389,656.73 and 281,274,975.12 is: 388,159,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,224,314.65 : 712,389,656.73 = 281,274,975.12 : x
  2. Step 2: Convert to fraction form
    516,224,314.65/712,389,656.73 = 281,274,975.12/x
  3. Step 3: Cross multiply
    516,224,314.65x = 712,389,656.73 × 281,274,975.12
  4. Step 4: Simplify right side
    516,224,314.65x = 200,377,382,972,476,096
  5. Step 5: Solve for x
    x = 200,377,382,972,476,096/516,224,314.65
  6. Step 6: Final answer
    x = 388,159,521.52

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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.