Home / 851,477,998.40-1,277,216,997.60-759,644,993.60

Finding the Fourth Proportional to 851,477,998.40, 1,277,216,997.60 and 759,644,993.60

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Solution

The fourth proportional to 851,477,998.40, 1,277,216,997.60 and 759,644,993.60 is: 1,139,467,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,477,998.40 : 1,277,216,997.60 = 759,644,993.60 : x
  2. Step 2: Convert to fraction form
    851,477,998.40/1,277,216,997.60 = 759,644,993.60/x
  3. Step 3: Cross multiply
    851,477,998.40x = 1,277,216,997.60 × 759,644,993.60
  4. Step 4: Simplify right side
    851,477,998.40x = 970,231,497,967,663,232
  5. Step 5: Solve for x
    x = 970,231,497,967,663,232/851,477,998.40
  6. Step 6: Final answer
    x = 1,139,467,490.40

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1.5x scale

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.