Home / 519,013,949.73-716,236,672.74-280,858,966.35

Finding the Fourth Proportional to 519,013,949.73, 716,236,672.74 and 280,858,966.35

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Solution

The fourth proportional to 519,013,949.73, 716,236,672.74 and 280,858,966.35 is: 387,583,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,013,949.73 : 716,236,672.74 = 280,858,966.35 : x
  2. Step 2: Convert to fraction form
    519,013,949.73/716,236,672.74 = 280,858,966.35/x
  3. Step 3: Cross multiply
    519,013,949.73x = 716,236,672.74 × 280,858,966.35
  4. Step 4: Simplify right side
    519,013,949.73x = 201,161,491,567,719,648
  5. Step 5: Solve for x
    x = 201,161,491,567,719,648/519,013,949.73
  6. Step 6: Final answer
    x = 387,583,978.57

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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.