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Finding the Third Proportional to 278,919,639 and 608,060,506.50

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Solution

The third proportional to 278,919,639 and 608,060,506.50 is: 1,325,606,116.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,919,639 : 608,060,506.50 = 608,060,506.50 : x
  2. Step 2: Convert to fraction form
    278,919,639/608,060,506.50 = 608,060,506.50/x
  3. Step 3: Cross multiply
    278,919,639x = 608,060,506.50 × 608,060,506.50
  4. Step 4: Simplify right side
    278,919,639x = 369,737,579,565,036,544
  5. Step 5: Solve for x
    x = 369,737,579,565,036,544/278,919,639
  6. Step 6: Final answer
    x = 1,325,606,116.84

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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.