Home / 30,130,880.72-41,541,587.19-19,515,383.60

Finding the Fourth Proportional to 30,130,880.72, 41,541,587.19 and 19,515,383.60

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Solution

The fourth proportional to 30,130,880.72, 41,541,587.19 and 19,515,383.60 is: 26,905,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130,880.72 : 41,541,587.19 = 19,515,383.60 : x
  2. Step 2: Convert to fraction form
    30,130,880.72/41,541,587.19 = 19,515,383.60/x
  3. Step 3: Cross multiply
    30,130,880.72x = 41,541,587.19 × 19,515,383.60
  4. Step 4: Simplify right side
    30,130,880.72x = 810,700,009,365,696.12
  5. Step 5: Solve for x
    x = 810,700,009,365,696.12/30,130,880.72
  6. Step 6: Final answer
    x = 26,905,951.30

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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.