Home / 724,355,399.70-1,086,592,148.55-309,835,356.30

Finding the Fourth Proportional to 724,355,399.70, 1,086,592,148.55 and 309,835,356.30

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Solution

The fourth proportional to 724,355,399.70, 1,086,592,148.55 and 309,835,356.30 is: 464,778,292.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,355,399.70 : 1,086,592,148.55 = 309,835,356.30 : x
  2. Step 2: Convert to fraction form
    724,355,399.70/1,086,592,148.55 = 309,835,356.30/x
  3. Step 3: Cross multiply
    724,355,399.70x = 1,086,592,148.55 × 309,835,356.30
  4. Step 4: Simplify right side
    724,355,399.70x = 336,664,665,498,771,776
  5. Step 5: Solve for x
    x = 336,664,665,498,771,776/724,355,399.70
  6. Step 6: Final answer
    x = 464,778,292.03

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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.