Home / 472,394,328.30-708,591,492.45-288,728,318.70

Finding the Fourth Proportional to 472,394,328.30, 708,591,492.45 and 288,728,318.70

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Solution

The fourth proportional to 472,394,328.30, 708,591,492.45 and 288,728,318.70 is: 433,092,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,328.30 : 708,591,492.45 = 288,728,318.70 : x
  2. Step 2: Convert to fraction form
    472,394,328.30/708,591,492.45 = 288,728,318.70/x
  3. Step 3: Cross multiply
    472,394,328.30x = 708,591,492.45 × 288,728,318.70
  4. Step 4: Simplify right side
    472,394,328.30x = 204,590,430,260,212,256
  5. Step 5: Solve for x
    x = 204,590,430,260,212,256/472,394,328.30
  6. Step 6: Final answer
    x = 433,092,478.05

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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.