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Finding the Third Proportional to 20,985,986.25 and 30,878,840.25

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Solution

The third proportional to 20,985,986.25 and 30,878,840.25 is: 45,435,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985,986.25 : 30,878,840.25 = 30,878,840.25 : x
  2. Step 2: Convert to fraction form
    20,985,986.25/30,878,840.25 = 30,878,840.25/x
  3. Step 3: Cross multiply
    20,985,986.25x = 30,878,840.25 × 30,878,840.25
  4. Step 4: Simplify right side
    20,985,986.25x = 953,502,775,185,020
  5. Step 5: Solve for x
    x = 953,502,775,185,020/20,985,986.25
  6. Step 6: Final answer
    x = 45,435,213.95

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1.5x scale

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.