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Finding the Third Proportional to 179,479,316 and 390,405,260

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Solution

The third proportional to 179,479,316 and 390,405,260 is: 849,213,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,479,316 : 390,405,260 = 390,405,260 : x
  2. Step 2: Convert to fraction form
    179,479,316/390,405,260 = 390,405,260/x
  3. Step 3: Cross multiply
    179,479,316x = 390,405,260 × 390,405,260
  4. Step 4: Simplify right side
    179,479,316x = 152,416,267,035,667,584
  5. Step 5: Solve for x
    x = 152,416,267,035,667,584/179,479,316
  6. Step 6: Final answer
    x = 849,213,549.69

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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.