Home / 419,907,535.40-629,861,303.10-370,589,810.60

Finding the Fourth Proportional to 419,907,535.40, 629,861,303.10 and 370,589,810.60

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Solution

The fourth proportional to 419,907,535.40, 629,861,303.10 and 370,589,810.60 is: 555,884,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,907,535.40 : 629,861,303.10 = 370,589,810.60 : x
  2. Step 2: Convert to fraction form
    419,907,535.40/629,861,303.10 = 370,589,810.60/x
  3. Step 3: Cross multiply
    419,907,535.40x = 629,861,303.10 × 370,589,810.60
  4. Step 4: Simplify right side
    419,907,535.40x = 233,420,181,020,098,208
  5. Step 5: Solve for x
    x = 233,420,181,020,098,208/419,907,535.40
  6. Step 6: Final answer
    x = 555,884,715.90

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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.