Home / 128,975,238.40-193,457,453.60-41,534,819.91

Finding the Fourth Proportional to 128,975,238.40, 193,457,453.60 and 41,534,819.91

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Solution

The fourth proportional to 128,975,238.40, 193,457,453.60 and 41,534,819.91 is: 62,300,489.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,975,238.40 : 193,457,453.60 = 41,534,819.91 : x
  2. Step 2: Convert to fraction form
    128,975,238.40/193,457,453.60 = 41,534,819.91/x
  3. Step 3: Cross multiply
    128,975,238.40x = 193,457,453.60 × 41,534,819.91
  4. Step 4: Simplify right side
    128,975,238.40x = 8,035,220,495,523,180
  5. Step 5: Solve for x
    x = 8,035,220,495,523,180/128,975,238.40
  6. Step 6: Final answer
    x = 62,300,489.58

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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.