Home / 128,407,435.92-192,617,471.88-51,720,096.24

Finding the Fourth Proportional to 128,407,435.92, 192,617,471.88 and 51,720,096.24

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Solution

The fourth proportional to 128,407,435.92, 192,617,471.88 and 51,720,096.24 is: 77,582,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,407,435.92 : 192,617,471.88 = 51,720,096.24 : x
  2. Step 2: Convert to fraction form
    128,407,435.92/192,617,471.88 = 51,720,096.24/x
  3. Step 3: Cross multiply
    128,407,435.92x = 192,617,471.88 × 51,720,096.24
  4. Step 4: Simplify right side
    128,407,435.92x = 9,962,194,183,139,094
  5. Step 5: Solve for x
    x = 9,962,194,183,139,094/128,407,435.92
  6. Step 6: Final answer
    x = 77,582,689.13

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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.