Home / 128,217,172.32-192,388,899.60-60,048,090.72

Finding the Fourth Proportional to 128,217,172.32, 192,388,899.60 and 60,048,090.72

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Solution

The fourth proportional to 128,217,172.32, 192,388,899.60 and 60,048,090.72 is: 90,101,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,217,172.32 : 192,388,899.60 = 60,048,090.72 : x
  2. Step 2: Convert to fraction form
    128,217,172.32/192,388,899.60 = 60,048,090.72/x
  3. Step 3: Cross multiply
    128,217,172.32x = 192,388,899.60 × 60,048,090.72
  4. Step 4: Simplify right side
    128,217,172.32x = 11,552,586,096,701,772
  5. Step 5: Solve for x
    x = 11,552,586,096,701,772/128,217,172.32
  6. Step 6: Final answer
    x = 90,101,707.03

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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.