Home / 724,355,429.20-1,086,592,192.80-309,835,385.80

Finding the Fourth Proportional to 724,355,429.20, 1,086,592,192.80 and 309,835,385.80

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Solution

The fourth proportional to 724,355,429.20, 1,086,592,192.80 and 309,835,385.80 is: 464,778,336.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,355,429.20 : 1,086,592,192.80 = 309,835,385.80 : x
  2. Step 2: Convert to fraction form
    724,355,429.20/1,086,592,192.80 = 309,835,385.80/x
  3. Step 3: Cross multiply
    724,355,429.20x = 1,086,592,192.80 × 309,835,385.80
  4. Step 4: Simplify right side
    724,355,429.20x = 336,664,711,263,456,000
  5. Step 5: Solve for x
    x = 336,664,711,263,456,000/724,355,429.20
  6. Step 6: Final answer
    x = 464,778,336.29

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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.