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Finding the Fourth Proportional to 124,416,441.60, 186,624,662.40 and 85,449,350.40

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Solution

The fourth proportional to 124,416,441.60, 186,624,662.40 and 85,449,350.40 is: 128,174,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,416,441.60 : 186,624,662.40 = 85,449,350.40 : x
  2. Step 2: Convert to fraction form
    124,416,441.60/186,624,662.40 = 85,449,350.40/x
  3. Step 3: Cross multiply
    124,416,441.60x = 186,624,662.40 × 85,449,350.40
  4. Step 4: Simplify right side
    124,416,441.60x = 15,946,956,170,699,306
  5. Step 5: Solve for x
    x = 15,946,956,170,699,306/124,416,441.60
  6. Step 6: Final answer
    x = 128,174,025.60

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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.