Home / 128,404,183.50-192,492,899.96-98,246,678.22

Finding the Fourth Proportional to 128,404,183.50, 192,492,899.96 and 98,246,678.22

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Solution

The fourth proportional to 128,404,183.50, 192,492,899.96 and 98,246,678.22 is: 147,283,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,404,183.50 : 192,492,899.96 = 98,246,678.22 : x
  2. Step 2: Convert to fraction form
    128,404,183.50/192,492,899.96 = 98,246,678.22/x
  3. Step 3: Cross multiply
    128,404,183.50x = 192,492,899.96 × 98,246,678.22
  4. Step 4: Simplify right side
    128,404,183.50x = 18,911,788,001,513,540
  5. Step 5: Solve for x
    x = 18,911,788,001,513,540/128,404,183.50
  6. Step 6: Final answer
    x = 147,283,269.80

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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.