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Finding the Third Proportional to 64,466,970 and 139,143,168

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Solution

The third proportional to 64,466,970 and 139,143,168 is: 300,321,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,466,970 : 139,143,168 = 139,143,168 : x
  2. Step 2: Convert to fraction form
    64,466,970/139,143,168 = 139,143,168/x
  3. Step 3: Cross multiply
    64,466,970x = 139,143,168 × 139,143,168
  4. Step 4: Simplify right side
    64,466,970x = 19,360,821,201,076,224
  5. Step 5: Solve for x
    x = 19,360,821,201,076,224/64,466,970
  6. Step 6: Final answer
    x = 300,321,563.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.