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Finding the Third Proportional to 5,558,490 and 11,887,492.50

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Solution

The third proportional to 5,558,490 and 11,887,492.50 is: 25,422,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558,490 : 11,887,492.50 = 11,887,492.50 : x
  2. Step 2: Convert to fraction form
    5,558,490/11,887,492.50 = 11,887,492.50/x
  3. Step 3: Cross multiply
    5,558,490x = 11,887,492.50 × 11,887,492.50
  4. Step 4: Simplify right side
    5,558,490x = 141,312,477,937,556.25
  5. Step 5: Solve for x
    x = 141,312,477,937,556.25/5,558,490
  6. Step 6: Final answer
    x = 25,422,817.70

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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.