Home / 419,905,376.40-629,858,064.60-370,587,651.60

Finding the Fourth Proportional to 419,905,376.40, 629,858,064.60 and 370,587,651.60

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Solution

The fourth proportional to 419,905,376.40, 629,858,064.60 and 370,587,651.60 is: 555,881,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,376.40 : 629,858,064.60 = 370,587,651.60 : x
  2. Step 2: Convert to fraction form
    419,905,376.40/629,858,064.60 = 370,587,651.60/x
  3. Step 3: Cross multiply
    419,905,376.40x = 629,858,064.60 × 370,587,651.60
  4. Step 4: Simplify right side
    419,905,376.40x = 233,417,621,001,435,104
  5. Step 5: Solve for x
    x = 233,417,621,001,435,104/419,905,376.40
  6. Step 6: Final answer
    x = 555,881,477.40

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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.