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Finding the Third Proportional to 139,041,962 and 210,352,476

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Solution

The third proportional to 139,041,962 and 210,352,476 is: 318,236,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,041,962 : 210,352,476 = 210,352,476 : x
  2. Step 2: Convert to fraction form
    139,041,962/210,352,476 = 210,352,476/x
  3. Step 3: Cross multiply
    139,041,962x = 210,352,476 × 210,352,476
  4. Step 4: Simplify right side
    139,041,962x = 44,248,164,159,330,576
  5. Step 5: Solve for x
    x = 44,248,164,159,330,576/139,041,962
  6. Step 6: Final answer
    x = 318,236,045.60

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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.