Home / 72,907,251.90-109,213,911.45-45,529,511.10

Finding the Fourth Proportional to 72,907,251.90, 109,213,911.45 and 45,529,511.10

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Solution

The fourth proportional to 72,907,251.90, 109,213,911.45 and 45,529,511.10 is: 68,202,488.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,907,251.90 : 109,213,911.45 = 45,529,511.10 : x
  2. Step 2: Convert to fraction form
    72,907,251.90/109,213,911.45 = 45,529,511.10/x
  3. Step 3: Cross multiply
    72,907,251.90x = 109,213,911.45 × 45,529,511.10
  4. Step 4: Simplify right side
    72,907,251.90x = 4,972,455,993,637,192
  5. Step 5: Solve for x
    x = 4,972,455,993,637,192/72,907,251.90
  6. Step 6: Final answer
    x = 68,202,488.29

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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.