Home / 1,020,201,359.52-1,408,312,289.72-685,867,783.44

Finding the Fourth Proportional to 1,020,201,359.52, 1,408,312,289.72 and 685,867,783.44

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Solution

The fourth proportional to 1,020,201,359.52, 1,408,312,289.72 and 685,867,783.44 is: 946,789,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,201,359.52 : 1,408,312,289.72 = 685,867,783.44 : x
  2. Step 2: Convert to fraction form
    1,020,201,359.52/1,408,312,289.72 = 685,867,783.44/x
  3. Step 3: Cross multiply
    1,020,201,359.52x = 1,408,312,289.72 × 685,867,783.44
  4. Step 4: Simplify right side
    1,020,201,359.52x = 965,916,028,541,567,616
  5. Step 5: Solve for x
    x = 965,916,028,541,567,616/1,020,201,359.52
  6. Step 6: Final answer
    x = 946,789,591.61

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Double scale
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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.