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Finding the Third Proportional to 459,902,488 and 689,684,820

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Solution

The third proportional to 459,902,488 and 689,684,820 is: 1,034,273,924.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,902,488 : 689,684,820 = 689,684,820 : x
  2. Step 2: Convert to fraction form
    459,902,488/689,684,820 = 689,684,820/x
  3. Step 3: Cross multiply
    459,902,488x = 689,684,820 × 689,684,820
  4. Step 4: Simplify right side
    459,902,488x = 475,665,150,938,432,384
  5. Step 5: Solve for x
    x = 475,665,150,938,432,384/459,902,488
  6. Step 6: Final answer
    x = 1,034,273,924.04

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.