Home / 156,686,469.40-235,106,945.70-70,485,880.60

Finding the Fourth Proportional to 156,686,469.40, 235,106,945.70 and 70,485,880.60

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Solution

The fourth proportional to 156,686,469.40, 235,106,945.70 and 70,485,880.60 is: 105,763,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,686,469.40 : 235,106,945.70 = 70,485,880.60 : x
  2. Step 2: Convert to fraction form
    156,686,469.40/235,106,945.70 = 70,485,880.60/x
  3. Step 3: Cross multiply
    156,686,469.40x = 235,106,945.70 × 70,485,880.60
  4. Step 4: Simplify right side
    156,686,469.40x = 16,571,720,102,840,882
  5. Step 5: Solve for x
    x = 16,571,720,102,840,882/156,686,469.40
  6. Step 6: Final answer
    x = 105,763,568.27

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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.