Home / 519,013,946.72-716,236,668.61-280,858,963.34

Finding the Fourth Proportional to 519,013,946.72, 716,236,668.61 and 280,858,963.34

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Solution

The fourth proportional to 519,013,946.72, 716,236,668.61 and 280,858,963.34 is: 387,583,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,013,946.72 : 716,236,668.61 = 280,858,963.34 : x
  2. Step 2: Convert to fraction form
    519,013,946.72/716,236,668.61 = 280,858,963.34/x
  3. Step 3: Cross multiply
    519,013,946.72x = 716,236,668.61 × 280,858,963.34
  4. Step 4: Simplify right side
    519,013,946.72x = 201,161,488,252,988,128
  5. Step 5: Solve for x
    x = 201,161,488,252,988,128/519,013,946.72
  6. Step 6: Final answer
    x = 387,583,974.43

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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.