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Finding the Third Proportional to 90,975,790 and 130,096,439

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Solution

The third proportional to 90,975,790 and 130,096,439 is: 186,039,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,975,790 : 130,096,439 = 130,096,439 : x
  2. Step 2: Convert to fraction form
    90,975,790/130,096,439 = 130,096,439/x
  3. Step 3: Cross multiply
    90,975,790x = 130,096,439 × 130,096,439
  4. Step 4: Simplify right side
    90,975,790x = 16,925,083,440,480,720
  5. Step 5: Solve for x
    x = 16,925,083,440,480,720/90,975,790
  6. Step 6: Final answer
    x = 186,039,422.58

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.