Home / 855,668,385.38-1,283,564,980.69-265,383,684.53

Finding the Fourth Proportional to 855,668,385.38, 1,283,564,980.69 and 265,383,684.53

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Solution

The fourth proportional to 855,668,385.38, 1,283,564,980.69 and 265,383,684.53 is: 398,094,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,668,385.38 : 1,283,564,980.69 = 265,383,684.53 : x
  2. Step 2: Convert to fraction form
    855,668,385.38/1,283,564,980.69 = 265,383,684.53/x
  3. Step 3: Cross multiply
    855,668,385.38x = 1,283,564,980.69 × 265,383,684.53
  4. Step 4: Simplify right side
    855,668,385.38x = 340,637,203,915,622,400
  5. Step 5: Solve for x
    x = 340,637,203,915,622,400/855,668,385.38
  6. Step 6: Final answer
    x = 398,094,880.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.