Home / 201,203,999.70-301,805,999.55-71,815,830.90

Finding the Fourth Proportional to 201,203,999.70, 301,805,999.55 and 71,815,830.90

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Solution

The fourth proportional to 201,203,999.70, 301,805,999.55 and 71,815,830.90 is: 107,723,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,203,999.70 : 301,805,999.55 = 71,815,830.90 : x
  2. Step 2: Convert to fraction form
    201,203,999.70/301,805,999.55 = 71,815,830.90/x
  3. Step 3: Cross multiply
    201,203,999.70x = 301,805,999.55 × 71,815,830.90
  4. Step 4: Simplify right side
    201,203,999.70x = 21,674,448,628,288,280
  5. Step 5: Solve for x
    x = 21,674,448,628,288,280/201,203,999.70
  6. Step 6: Final answer
    x = 107,723,746.35

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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.