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Finding the Third Proportional to 291,235,378.50 and 623,923,155

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Solution

The third proportional to 291,235,378.50 and 623,923,155 is: 1,336,651,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,235,378.50 : 623,923,155 = 623,923,155 : x
  2. Step 2: Convert to fraction form
    291,235,378.50/623,923,155 = 623,923,155/x
  3. Step 3: Cross multiply
    291,235,378.50x = 623,923,155 × 623,923,155
  4. Step 4: Simplify right side
    291,235,378.50x = 389,280,103,345,154,048
  5. Step 5: Solve for x
    x = 389,280,103,345,154,048/291,235,378.50
  6. Step 6: Final answer
    x = 1,336,651,149.15

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.