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Finding the Third Proportional to 143,080,987.50 and 309,931,749

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Solution

The third proportional to 143,080,987.50 and 309,931,749 is: 671,351,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,080,987.50 : 309,931,749 = 309,931,749 : x
  2. Step 2: Convert to fraction form
    143,080,987.50/309,931,749 = 309,931,749/x
  3. Step 3: Cross multiply
    143,080,987.50x = 309,931,749 × 309,931,749
  4. Step 4: Simplify right side
    143,080,987.50x = 96,057,689,038,199,008
  5. Step 5: Solve for x
    x = 96,057,689,038,199,008/143,080,987.50
  6. Step 6: Final answer
    x = 671,351,873.62

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.