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Finding the Third Proportional to 215,217,054 and 342,617,958

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Solution

The third proportional to 215,217,054 and 342,617,958 is: 545,435,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,217,054 : 342,617,958 = 342,617,958 : x
  2. Step 2: Convert to fraction form
    215,217,054/342,617,958 = 342,617,958/x
  3. Step 3: Cross multiply
    215,217,054x = 342,617,958 × 342,617,958
  4. Step 4: Simplify right side
    215,217,054x = 117,387,065,144,089,760
  5. Step 5: Solve for x
    x = 117,387,065,144,089,760/215,217,054
  6. Step 6: Final answer
    x = 545,435,702.99

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.