Home / 919,642,485.52-1,379,683,361.40-306,232,025.68

Finding the Fourth Proportional to 919,642,485.52, 1,379,683,361.40 and 306,232,025.68

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Solution

The fourth proportional to 919,642,485.52, 1,379,683,361.40 and 306,232,025.68 is: 459,421,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,642,485.52 : 1,379,683,361.40 = 306,232,025.68 : x
  2. Step 2: Convert to fraction form
    919,642,485.52/1,379,683,361.40 = 306,232,025.68/x
  3. Step 3: Cross multiply
    919,642,485.52x = 1,379,683,361.40 × 306,232,025.68
  4. Step 4: Simplify right side
    919,642,485.52x = 422,503,230,558,513,536
  5. Step 5: Solve for x
    x = 422,503,230,558,513,536/919,642,485.52
  6. Step 6: Final answer
    x = 459,421,174.22

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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.