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Finding the Third Proportional to 289,303,428 and 436,645,500

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Solution

The third proportional to 289,303,428 and 436,645,500 is: 659,028,805.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,303,428 : 436,645,500 = 436,645,500 : x
  2. Step 2: Convert to fraction form
    289,303,428/436,645,500 = 436,645,500/x
  3. Step 3: Cross multiply
    289,303,428x = 436,645,500 × 436,645,500
  4. Step 4: Simplify right side
    289,303,428x = 190,659,292,670,249,984
  5. Step 5: Solve for x
    x = 190,659,292,670,249,984/289,303,428
  6. Step 6: Final answer
    x = 659,028,805.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.