Home / 419,905,338.40-629,858,007.60-235,483,501.60

Finding the Fourth Proportional to 419,905,338.40, 629,858,007.60 and 235,483,501.60

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Solution

The fourth proportional to 419,905,338.40, 629,858,007.60 and 235,483,501.60 is: 353,225,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,338.40 : 629,858,007.60 = 235,483,501.60 : x
  2. Step 2: Convert to fraction form
    419,905,338.40/629,858,007.60 = 235,483,501.60/x
  3. Step 3: Cross multiply
    419,905,338.40x = 629,858,007.60 × 235,483,501.60
  4. Step 4: Simplify right side
    419,905,338.40x = 148,321,169,140,447,424
  5. Step 5: Solve for x
    x = 148,321,169,140,447,424/419,905,338.40
  6. Step 6: Final answer
    x = 353,225,252.40

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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.