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Finding the Third Proportional to 219,817,370 and 340,055,985

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Solution

The third proportional to 219,817,370 and 340,055,985 is: 526,064,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,817,370 : 340,055,985 = 340,055,985 : x
  2. Step 2: Convert to fraction form
    219,817,370/340,055,985 = 340,055,985/x
  3. Step 3: Cross multiply
    219,817,370x = 340,055,985 × 340,055,985
  4. Step 4: Simplify right side
    219,817,370x = 115,638,072,934,320,224
  5. Step 5: Solve for x
    x = 115,638,072,934,320,224/219,817,370
  6. Step 6: Final answer
    x = 526,064,309.36

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.