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Finding the Third Proportional to 143,209,440 and 212,129,010

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Solution

The third proportional to 143,209,440 and 212,129,010 is: 314,216,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,209,440 : 212,129,010 = 212,129,010 : x
  2. Step 2: Convert to fraction form
    143,209,440/212,129,010 = 212,129,010/x
  3. Step 3: Cross multiply
    143,209,440x = 212,129,010 × 212,129,010
  4. Step 4: Simplify right side
    143,209,440x = 44,998,716,883,580,096
  5. Step 5: Solve for x
    x = 44,998,716,883,580,096/143,209,440
  6. Step 6: Final answer
    x = 314,216,136.06

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.