Home / 712,823,693.14-983,647,193.19-395,300,318.29

Finding the Fourth Proportional to 712,823,693.14, 983,647,193.19 and 395,300,318.29

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Solution

The fourth proportional to 712,823,693.14, 983,647,193.19 and 395,300,318.29 is: 545,486,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,823,693.14 : 983,647,193.19 = 395,300,318.29 : x
  2. Step 2: Convert to fraction form
    712,823,693.14/983,647,193.19 = 395,300,318.29/x
  3. Step 3: Cross multiply
    712,823,693.14x = 983,647,193.19 × 395,300,318.29
  4. Step 4: Simplify right side
    712,823,693.14x = 388,836,048,553,072,192
  5. Step 5: Solve for x
    x = 388,836,048,553,072,192/712,823,693.14
  6. Step 6: Final answer
    x = 545,486,986.89

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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.