Home / 743,220,013.56-1,025,708,979.33-408,751,468.26

Finding the Fourth Proportional to 743,220,013.56, 1,025,708,979.33 and 408,751,468.26

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Solution

The fourth proportional to 743,220,013.56, 1,025,708,979.33 and 408,751,468.26 is: 564,112,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,220,013.56 : 1,025,708,979.33 = 408,751,468.26 : x
  2. Step 2: Convert to fraction form
    743,220,013.56/1,025,708,979.33 = 408,751,468.26/x
  3. Step 3: Cross multiply
    743,220,013.56x = 1,025,708,979.33 × 408,751,468.26
  4. Step 4: Simplify right side
    743,220,013.56x = 419,260,051,308,603,520
  5. Step 5: Solve for x
    x = 419,260,051,308,603,520/743,220,013.56
  6. Step 6: Final answer
    x = 564,112,972.82

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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.