Home / 1,025,620,003.80-1,538,430,005.70-298,632,432.60

Finding the Fourth Proportional to 1,025,620,003.80, 1,538,430,005.70 and 298,632,432.60

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Solution

The fourth proportional to 1,025,620,003.80, 1,538,430,005.70 and 298,632,432.60 is: 447,948,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,620,003.80 : 1,538,430,005.70 = 298,632,432.60 : x
  2. Step 2: Convert to fraction form
    1,025,620,003.80/1,538,430,005.70 = 298,632,432.60/x
  3. Step 3: Cross multiply
    1,025,620,003.80x = 1,538,430,005.70 × 298,632,432.60
  4. Step 4: Simplify right side
    1,025,620,003.80x = 459,425,094,987,022,912
  5. Step 5: Solve for x
    x = 459,425,094,987,022,912/1,025,620,003.80
  6. Step 6: Final answer
    x = 447,948,648.90

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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.