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Finding the Third Proportional to 30,427,428 and 67,657,992

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Solution

The third proportional to 30,427,428 and 67,657,992 is: 150,443,339.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427,428 : 67,657,992 = 67,657,992 : x
  2. Step 2: Convert to fraction form
    30,427,428/67,657,992 = 67,657,992/x
  3. Step 3: Cross multiply
    30,427,428x = 67,657,992 × 67,657,992
  4. Step 4: Simplify right side
    30,427,428x = 4,577,603,881,472,064
  5. Step 5: Solve for x
    x = 4,577,603,881,472,064/30,427,428
  6. Step 6: Final answer
    x = 150,443,339.52

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.