Home / 479,682,261.64-661,966,084.76-281,447,129.16

Finding the Fourth Proportional to 479,682,261.64, 661,966,084.76 and 281,447,129.16

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Solution

The fourth proportional to 479,682,261.64, 661,966,084.76 and 281,447,129.16 is: 388,399,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,682,261.64 : 661,966,084.76 = 281,447,129.16 : x
  2. Step 2: Convert to fraction form
    479,682,261.64/661,966,084.76 = 281,447,129.16/x
  3. Step 3: Cross multiply
    479,682,261.64x = 661,966,084.76 × 281,447,129.16
  4. Step 4: Simplify right side
    479,682,261.64x = 186,308,454,156,987,232
  5. Step 5: Solve for x
    x = 186,308,454,156,987,232/479,682,261.64
  6. Step 6: Final answer
    x = 388,399,715.93

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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.