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Finding the Third Proportional to 130,431,072 and 281,291,025

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Solution

The third proportional to 130,431,072 and 281,291,025 is: 606,639,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,431,072 : 281,291,025 = 281,291,025 : x
  2. Step 2: Convert to fraction form
    130,431,072/281,291,025 = 281,291,025/x
  3. Step 3: Cross multiply
    130,431,072x = 281,291,025 × 281,291,025
  4. Step 4: Simplify right side
    130,431,072x = 79,124,640,745,550,624
  5. Step 5: Solve for x
    x = 79,124,640,745,550,624/130,431,072
  6. Step 6: Final answer
    x = 606,639,503.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.