Home / 128,771,144.70-193,090,361.85-47,950,511.10

Finding the Fourth Proportional to 128,771,144.70, 193,090,361.85 and 47,950,511.10

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Solution

The fourth proportional to 128,771,144.70, 193,090,361.85 and 47,950,511.10 is: 71,901,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,771,144.70 : 193,090,361.85 = 47,950,511.10 : x
  2. Step 2: Convert to fraction form
    128,771,144.70/193,090,361.85 = 47,950,511.10/x
  3. Step 3: Cross multiply
    128,771,144.70x = 193,090,361.85 × 47,950,511.10
  4. Step 4: Simplify right side
    128,771,144.70x = 9,258,781,539,191,442
  5. Step 5: Solve for x
    x = 9,258,781,539,191,442/128,771,144.70
  6. Step 6: Final answer
    x = 71,901,057.96

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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.