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Finding the Third Proportional to 313,891,830.50 and 489,910,572

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Solution

The third proportional to 313,891,830.50 and 489,910,572 is: 764,634,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,891,830.50 : 489,910,572 = 489,910,572 : x
  2. Step 2: Convert to fraction form
    313,891,830.50/489,910,572 = 489,910,572/x
  3. Step 3: Cross multiply
    313,891,830.50x = 489,910,572 × 489,910,572
  4. Step 4: Simplify right side
    313,891,830.50x = 240,012,368,557,367,168
  5. Step 5: Solve for x
    x = 240,012,368,557,367,168/313,891,830.50
  6. Step 6: Final answer
    x = 764,634,008.39

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.