Home / 712,369,954.26-983,046,769.47-394,816,668.39

Finding the Fourth Proportional to 712,369,954.26, 983,046,769.47 and 394,816,668.39

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Solution

The fourth proportional to 712,369,954.26, 983,046,769.47 and 394,816,668.39 is: 544,833,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,369,954.26 : 983,046,769.47 = 394,816,668.39 : x
  2. Step 2: Convert to fraction form
    712,369,954.26/983,046,769.47 = 394,816,668.39/x
  3. Step 3: Cross multiply
    712,369,954.26x = 983,046,769.47 × 394,816,668.39
  4. Step 4: Simplify right side
    712,369,954.26x = 388,123,250,393,697,792
  5. Step 5: Solve for x
    x = 388,123,250,393,697,792/712,369,954.26
  6. Step 6: Final answer
    x = 544,833,829.77

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1.5x scale

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.