Home / 519,013,947.09-716,236,669.13-280,858,963.71

Finding the Fourth Proportional to 519,013,947.09, 716,236,669.13 and 280,858,963.71

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Solution

The fourth proportional to 519,013,947.09, 716,236,669.13 and 280,858,963.71 is: 387,583,974.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,013,947.09 : 716,236,669.13 = 280,858,963.71 : x
  2. Step 2: Convert to fraction form
    519,013,947.09/716,236,669.13 = 280,858,963.71/x
  3. Step 3: Cross multiply
    519,013,947.09x = 716,236,669.13 × 280,858,963.71
  4. Step 4: Simplify right side
    519,013,947.09x = 201,161,488,664,235,552
  5. Step 5: Solve for x
    x = 201,161,488,664,235,552/519,013,947.09
  6. Step 6: Final answer
    x = 387,583,974.94

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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.