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Finding the Third Proportional to 2,128,419 and 3,130,384.50

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Solution

The third proportional to 2,128,419 and 3,130,384.50 is: 4,604,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,419 : 3,130,384.50 = 3,130,384.50 : x
  2. Step 2: Convert to fraction form
    2,128,419/3,130,384.50 = 3,130,384.50/x
  3. Step 3: Cross multiply
    2,128,419x = 3,130,384.50 × 3,130,384.50
  4. Step 4: Simplify right side
    2,128,419x = 9,799,307,117,840.25
  5. Step 5: Solve for x
    x = 9,799,307,117,840.25/2,128,419
  6. Step 6: Final answer
    x = 4,604,031.03

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.