Home / 579,413,999.80-869,120,999.70-273,303,983.80

Finding the Fourth Proportional to 579,413,999.80, 869,120,999.70 and 273,303,983.80

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Solution

The fourth proportional to 579,413,999.80, 869,120,999.70 and 273,303,983.80 is: 409,955,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,413,999.80 : 869,120,999.70 = 273,303,983.80 : x
  2. Step 2: Convert to fraction form
    579,413,999.80/869,120,999.70 = 273,303,983.80/x
  3. Step 3: Cross multiply
    579,413,999.80x = 869,120,999.70 × 273,303,983.80
  4. Step 4: Simplify right side
    579,413,999.80x = 237,534,231,622,248,640
  5. Step 5: Solve for x
    x = 237,534,231,622,248,640/579,413,999.80
  6. Step 6: Final answer
    x = 409,955,975.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.