Home / 354,287,606.40-531,431,409.60-263,588,342.40

Finding the Fourth Proportional to 354,287,606.40, 531,431,409.60 and 263,588,342.40

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Solution

The fourth proportional to 354,287,606.40, 531,431,409.60 and 263,588,342.40 is: 395,382,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,287,606.40 : 531,431,409.60 = 263,588,342.40 : x
  2. Step 2: Convert to fraction form
    354,287,606.40/531,431,409.60 = 263,588,342.40/x
  3. Step 3: Cross multiply
    354,287,606.40x = 531,431,409.60 × 263,588,342.40
  4. Step 4: Simplify right side
    354,287,606.40x = 140,079,124,355,759,456
  5. Step 5: Solve for x
    x = 140,079,124,355,759,456/354,287,606.40
  6. Step 6: Final answer
    x = 395,382,513.60

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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.