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Finding the Third Proportional to 18,704,128 and 40,249,056

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Solution

The third proportional to 18,704,128 and 40,249,056 is: 86,611,175.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704,128 : 40,249,056 = 40,249,056 : x
  2. Step 2: Convert to fraction form
    18,704,128/40,249,056 = 40,249,056/x
  3. Step 3: Cross multiply
    18,704,128x = 40,249,056 × 40,249,056
  4. Step 4: Simplify right side
    18,704,128x = 1,619,986,508,891,136
  5. Step 5: Solve for x
    x = 1,619,986,508,891,136/18,704,128
  6. Step 6: Final answer
    x = 86,611,175.29

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.