Home / 511,215,774.62-705,509,384.20-282,069,427.98

Finding the Fourth Proportional to 511,215,774.62, 705,509,384.20 and 282,069,427.98

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Solution

The fourth proportional to 511,215,774.62, 705,509,384.20 and 282,069,427.98 is: 389,273,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,215,774.62 : 705,509,384.20 = 282,069,427.98 : x
  2. Step 2: Convert to fraction form
    511,215,774.62/705,509,384.20 = 282,069,427.98/x
  3. Step 3: Cross multiply
    511,215,774.62x = 705,509,384.20 × 282,069,427.98
  4. Step 4: Simplify right side
    511,215,774.62x = 199,002,628,435,816,064
  5. Step 5: Solve for x
    x = 199,002,628,435,816,064/511,215,774.62
  6. Step 6: Final answer
    x = 389,273,254.69

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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.