Home / 128,749,532.70-193,124,299.05-114,640,758.30

Finding the Fourth Proportional to 128,749,532.70, 193,124,299.05 and 114,640,758.30

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Solution

The fourth proportional to 128,749,532.70, 193,124,299.05 and 114,640,758.30 is: 171,961,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,749,532.70 : 193,124,299.05 = 114,640,758.30 : x
  2. Step 2: Convert to fraction form
    128,749,532.70/193,124,299.05 = 114,640,758.30/x
  3. Step 3: Cross multiply
    128,749,532.70x = 193,124,299.05 × 114,640,758.30
  4. Step 4: Simplify right side
    128,749,532.70x = 22,139,916,089,247,972
  5. Step 5: Solve for x
    x = 22,139,916,089,247,972/128,749,532.70
  6. Step 6: Final answer
    x = 171,961,137.45

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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.