Home / 219,780,109.40-329,670,164.10-207,238,976.60

Finding the Fourth Proportional to 219,780,109.40, 329,670,164.10 and 207,238,976.60

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Solution

The fourth proportional to 219,780,109.40, 329,670,164.10 and 207,238,976.60 is: 310,858,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,780,109.40 : 329,670,164.10 = 207,238,976.60 : x
  2. Step 2: Convert to fraction form
    219,780,109.40/329,670,164.10 = 207,238,976.60/x
  3. Step 3: Cross multiply
    219,780,109.40x = 329,670,164.10 × 207,238,976.60
  4. Step 4: Simplify right side
    219,780,109.40x = 68,320,507,423,638,064
  5. Step 5: Solve for x
    x = 68,320,507,423,638,064/219,780,109.40
  6. Step 6: Final answer
    x = 310,858,464.90

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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.