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Finding the Third Proportional to 662,909,740 and 921,723,236

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Solution

The third proportional to 662,909,740 and 921,723,236 is: 1,281,582,804.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,909,740 : 921,723,236 = 921,723,236 : x
  2. Step 2: Convert to fraction form
    662,909,740/921,723,236 = 921,723,236/x
  3. Step 3: Cross multiply
    662,909,740x = 921,723,236 × 921,723,236
  4. Step 4: Simplify right side
    662,909,740x = 849,573,723,782,311,680
  5. Step 5: Solve for x
    x = 849,573,723,782,311,680/662,909,740
  6. Step 6: Final answer
    x = 1,281,582,804.59

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.