Home / 202,128,765.60-303,193,148.40-81,047,114.40

Finding the Fourth Proportional to 202,128,765.60, 303,193,148.40 and 81,047,114.40

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Solution

The fourth proportional to 202,128,765.60, 303,193,148.40 and 81,047,114.40 is: 121,570,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,128,765.60 : 303,193,148.40 = 81,047,114.40 : x
  2. Step 2: Convert to fraction form
    202,128,765.60/303,193,148.40 = 81,047,114.40/x
  3. Step 3: Cross multiply
    202,128,765.60x = 303,193,148.40 × 81,047,114.40
  4. Step 4: Simplify right side
    202,128,765.60x = 24,572,929,783,670,976
  5. Step 5: Solve for x
    x = 24,572,929,783,670,976/202,128,765.60
  6. Step 6: Final answer
    x = 121,570,671.60

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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.