Home / 724,355,434.20-1,086,592,200.30-309,835,390.80

Finding the Fourth Proportional to 724,355,434.20, 1,086,592,200.30 and 309,835,390.80

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Solution

The fourth proportional to 724,355,434.20, 1,086,592,200.30 and 309,835,390.80 is: 464,778,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,355,434.20 : 1,086,592,200.30 = 309,835,390.80 : x
  2. Step 2: Convert to fraction form
    724,355,434.20/1,086,592,200.30 = 309,835,390.80/x
  3. Step 3: Cross multiply
    724,355,434.20x = 1,086,592,200.30 × 309,835,390.80
  4. Step 4: Simplify right side
    724,355,434.20x = 336,664,719,020,182,400
  5. Step 5: Solve for x
    x = 336,664,719,020,182,400/724,355,434.20
  6. Step 6: Final answer
    x = 464,778,343.79

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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.