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Finding the Third Proportional to 155,421,728 and 340,045,030

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Solution

The third proportional to 155,421,728 and 340,045,030 is: 743,979,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,421,728 : 340,045,030 = 340,045,030 : x
  2. Step 2: Convert to fraction form
    155,421,728/340,045,030 = 340,045,030/x
  3. Step 3: Cross multiply
    155,421,728x = 340,045,030 × 340,045,030
  4. Step 4: Simplify right side
    155,421,728x = 115,630,622,427,700,896
  5. Step 5: Solve for x
    x = 115,630,622,427,700,896/155,421,728
  6. Step 6: Final answer
    x = 743,979,776.29

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.