Home / 439,457,955.24-661,817,611.20-400,231,630.72

Finding the Fourth Proportional to 439,457,955.24, 661,817,611.20 and 400,231,630.72

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Solution

The fourth proportional to 439,457,955.24, 661,817,611.20 and 400,231,630.72 is: 602,743,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,457,955.24 : 661,817,611.20 = 400,231,630.72 : x
  2. Step 2: Convert to fraction form
    439,457,955.24/661,817,611.20 = 400,231,630.72/x
  3. Step 3: Cross multiply
    439,457,955.24x = 661,817,611.20 × 400,231,630.72
  4. Step 4: Simplify right side
    439,457,955.24x = 264,880,341,769,790,976
  5. Step 5: Solve for x
    x = 264,880,341,769,790,976/439,457,955.24
  6. Step 6: Final answer
    x = 602,743,308.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.