Home / 437,638,441.20-656,457,661.80-255,792,015.60

Finding the Fourth Proportional to 437,638,441.20, 656,457,661.80 and 255,792,015.60

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Solution

The fourth proportional to 437,638,441.20, 656,457,661.80 and 255,792,015.60 is: 383,688,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,638,441.20 : 656,457,661.80 = 255,792,015.60 : x
  2. Step 2: Convert to fraction form
    437,638,441.20/656,457,661.80 = 255,792,015.60/x
  3. Step 3: Cross multiply
    437,638,441.20x = 656,457,661.80 × 255,792,015.60
  4. Step 4: Simplify right side
    437,638,441.20x = 167,916,628,467,885,120
  5. Step 5: Solve for x
    x = 167,916,628,467,885,120/437,638,441.20
  6. Step 6: Final answer
    x = 383,688,023.40

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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.