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Finding the Fourth Proportional to 352,868,277.20, 529,302,415.80 and 324,650,728.40

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Solution

The fourth proportional to 352,868,277.20, 529,302,415.80 and 324,650,728.40 is: 486,976,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,868,277.20 : 529,302,415.80 = 324,650,728.40 : x
  2. Step 2: Convert to fraction form
    352,868,277.20/529,302,415.80 = 324,650,728.40/x
  3. Step 3: Cross multiply
    352,868,277.20x = 529,302,415.80 × 324,650,728.40
  4. Step 4: Simplify right side
    352,868,277.20x = 171,838,414,833,349,664
  5. Step 5: Solve for x
    x = 171,838,414,833,349,664/352,868,277.20
  6. Step 6: Final answer
    x = 486,976,092.60

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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.