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Finding the Fourth Proportional to 221,301,217.45, 310,275,200.75 and 221,301,217.45

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Solution

The fourth proportional to 221,301,217.45, 310,275,200.75 and 221,301,217.45 is: 310,275,200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,301,217.45 : 310,275,200.75 = 221,301,217.45 : x
  2. Step 2: Convert to fraction form
    221,301,217.45/310,275,200.75 = 221,301,217.45/x
  3. Step 3: Cross multiply
    221,301,217.45x = 310,275,200.75 × 221,301,217.45
  4. Step 4: Simplify right side
    221,301,217.45x = 68,664,279,670,518,152
  5. Step 5: Solve for x
    x = 68,664,279,670,518,152/221,301,217.45
  6. Step 6: Final answer
    x = 310,275,200.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.