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Finding the Third Proportional to 9,570,139 and 21,000,321

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Solution

The third proportional to 9,570,139 and 21,000,321 is: 46,082,244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,570,139 : 21,000,321 = 21,000,321 : x
  2. Step 2: Convert to fraction form
    9,570,139/21,000,321 = 21,000,321/x
  3. Step 3: Cross multiply
    9,570,139x = 21,000,321 × 21,000,321
  4. Step 4: Simplify right side
    9,570,139x = 441,013,482,103,041
  5. Step 5: Solve for x
    x = 441,013,482,103,041/9,570,139
  6. Step 6: Final answer
    x = 46,082,244.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.