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Finding the Third Proportional to 12,390,048 and 18,771,840

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Solution

The third proportional to 12,390,048 and 18,771,840 is: 28,440,727.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,048 : 18,771,840 = 18,771,840 : x
  2. Step 2: Convert to fraction form
    12,390,048/18,771,840 = 18,771,840/x
  3. Step 3: Cross multiply
    12,390,048x = 18,771,840 × 18,771,840
  4. Step 4: Simplify right side
    12,390,048x = 352,381,976,985,600
  5. Step 5: Solve for x
    x = 352,381,976,985,600/12,390,048
  6. Step 6: Final answer
    x = 28,440,727.35

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.