Home / 397,008,760.61-547,887,206.16-220,809,497.06

Finding the Fourth Proportional to 397,008,760.61, 547,887,206.16 and 220,809,497.06

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Solution

The fourth proportional to 397,008,760.61, 547,887,206.16 and 220,809,497.06 is: 304,725,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,008,760.61 : 547,887,206.16 = 220,809,497.06 : x
  2. Step 2: Convert to fraction form
    397,008,760.61/547,887,206.16 = 220,809,497.06/x
  3. Step 3: Cross multiply
    397,008,760.61x = 547,887,206.16 × 220,809,497.06
  4. Step 4: Simplify right side
    397,008,760.61x = 120,978,698,435,058,688
  5. Step 5: Solve for x
    x = 120,978,698,435,058,688/397,008,760.61
  6. Step 6: Final answer
    x = 304,725,513.49

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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.