Home / 111,280,778.40-166,921,167.60-70,466,109.60

Finding the Fourth Proportional to 111,280,778.40, 166,921,167.60 and 70,466,109.60

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Solution

The fourth proportional to 111,280,778.40, 166,921,167.60 and 70,466,109.60 is: 105,699,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,280,778.40 : 166,921,167.60 = 70,466,109.60 : x
  2. Step 2: Convert to fraction form
    111,280,778.40/166,921,167.60 = 70,466,109.60/x
  3. Step 3: Cross multiply
    111,280,778.40x = 166,921,167.60 × 70,466,109.60
  4. Step 4: Simplify right side
    111,280,778.40x = 11,762,285,290,661,568
  5. Step 5: Solve for x
    x = 11,762,285,290,661,568/111,280,778.40
  6. Step 6: Final answer
    x = 105,699,164.40

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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.