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Finding the Third Proportional to 9,725,490 and 21,163,428

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Solution

The third proportional to 9,725,490 and 21,163,428 is: 46,053,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,725,490 : 21,163,428 = 21,163,428 : x
  2. Step 2: Convert to fraction form
    9,725,490/21,163,428 = 21,163,428/x
  3. Step 3: Cross multiply
    9,725,490x = 21,163,428 × 21,163,428
  4. Step 4: Simplify right side
    9,725,490x = 447,890,684,711,184
  5. Step 5: Solve for x
    x = 447,890,684,711,184/9,725,490
  6. Step 6: Final answer
    x = 46,053,276.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.