Home / 427,493,506.89-589,636,851.53-392,324,904.97

Finding the Fourth Proportional to 427,493,506.89, 589,636,851.53 and 392,324,904.97

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Solution

The fourth proportional to 427,493,506.89, 589,636,851.53 and 392,324,904.97 is: 541,129,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,493,506.89 : 589,636,851.53 = 392,324,904.97 : x
  2. Step 2: Convert to fraction form
    427,493,506.89/589,636,851.53 = 392,324,904.97/x
  3. Step 3: Cross multiply
    427,493,506.89x = 589,636,851.53 × 392,324,904.97
  4. Step 4: Simplify right side
    427,493,506.89x = 231,329,221,742,638,880
  5. Step 5: Solve for x
    x = 231,329,221,742,638,880/427,493,506.89
  6. Step 6: Final answer
    x = 541,129,205.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.