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Finding the Third Proportional to 13,078,368 and 19,430,928

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Solution

The third proportional to 13,078,368 and 19,430,928 is: 28,869,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078,368 : 19,430,928 = 19,430,928 : x
  2. Step 2: Convert to fraction form
    13,078,368/19,430,928 = 19,430,928/x
  3. Step 3: Cross multiply
    13,078,368x = 19,430,928 × 19,430,928
  4. Step 4: Simplify right side
    13,078,368x = 377,560,962,941,184
  5. Step 5: Solve for x
    x = 377,560,962,941,184/13,078,368
  6. Step 6: Final answer
    x = 28,869,119.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.