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Finding the Third Proportional to 215,898,300 and 307,698,635

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Solution

The third proportional to 215,898,300 and 307,698,635 is: 438,532,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,898,300 : 307,698,635 = 307,698,635 : x
  2. Step 2: Convert to fraction form
    215,898,300/307,698,635 = 307,698,635/x
  3. Step 3: Cross multiply
    215,898,300x = 307,698,635 × 307,698,635
  4. Step 4: Simplify right side
    215,898,300x = 94,678,449,980,863,232
  5. Step 5: Solve for x
    x = 94,678,449,980,863,232/215,898,300
  6. Step 6: Final answer
    x = 438,532,633.10

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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.