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Finding the Third Proportional to 290,734,477 and 637,958,547

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Solution

The third proportional to 290,734,477 and 637,958,547 is: 1,399,872,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,734,477 : 637,958,547 = 637,958,547 : x
  2. Step 2: Convert to fraction form
    290,734,477/637,958,547 = 637,958,547/x
  3. Step 3: Cross multiply
    290,734,477x = 637,958,547 × 637,958,547
  4. Step 4: Simplify right side
    290,734,477x = 406,991,107,690,351,232
  5. Step 5: Solve for x
    x = 406,991,107,690,351,232/290,734,477
  6. Step 6: Final answer
    x = 1,399,872,185.40

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.