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Finding the Fourth Proportional to 66,096,101.60, 99,144,152.40 and 40,230,015.20

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Solution

The fourth proportional to 66,096,101.60, 99,144,152.40 and 40,230,015.20 is: 60,345,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,096,101.60 : 99,144,152.40 = 40,230,015.20 : x
  2. Step 2: Convert to fraction form
    66,096,101.60/99,144,152.40 = 40,230,015.20/x
  3. Step 3: Cross multiply
    66,096,101.60x = 99,144,152.40 × 40,230,015.20
  4. Step 4: Simplify right side
    66,096,101.60x = 3,988,570,758,043,117
  5. Step 5: Solve for x
    x = 3,988,570,758,043,117/66,096,101.60
  6. Step 6: Final answer
    x = 60,345,022.80

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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.