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Finding the Third Proportional to 139,041,855.50 and 210,352,295.50

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Solution

The third proportional to 139,041,855.50 and 210,352,295.50 is: 318,235,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,041,855.50 : 210,352,295.50 = 210,352,295.50 : x
  2. Step 2: Convert to fraction form
    139,041,855.50/210,352,295.50 = 210,352,295.50/x
  3. Step 3: Cross multiply
    139,041,855.50x = 210,352,295.50 × 210,352,295.50
  4. Step 4: Simplify right side
    139,041,855.50x = 44,248,088,222,119,320
  5. Step 5: Solve for x
    x = 44,248,088,222,119,320/139,041,855.50
  6. Step 6: Final answer
    x = 318,235,743.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.