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Finding the Third Proportional to 358,958,598 and 780,810,458

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Solution

The third proportional to 358,958,598 and 780,810,458 is: 1,698,426,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,958,598 : 780,810,458 = 780,810,458 : x
  2. Step 2: Convert to fraction form
    358,958,598/780,810,458 = 780,810,458/x
  3. Step 3: Cross multiply
    358,958,598x = 780,810,458 × 780,810,458
  4. Step 4: Simplify right side
    358,958,598x = 609,664,971,322,169,728
  5. Step 5: Solve for x
    x = 609,664,971,322,169,728/358,958,598
  6. Step 6: Final answer
    x = 1,698,426,990.52

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.