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Finding the Third Proportional to 155,236,905 and 315,035,527.50

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Solution

The third proportional to 155,236,905 and 315,035,527.50 is: 639,328,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,236,905 : 315,035,527.50 = 315,035,527.50 : x
  2. Step 2: Convert to fraction form
    155,236,905/315,035,527.50 = 315,035,527.50/x
  3. Step 3: Cross multiply
    155,236,905x = 315,035,527.50 × 315,035,527.50
  4. Step 4: Simplify right side
    155,236,905x = 99,247,383,587,203,264
  5. Step 5: Solve for x
    x = 99,247,383,587,203,264/155,236,905
  6. Step 6: Final answer
    x = 639,328,538.45

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.