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Finding the Third Proportional to 9,931,331 and 21,332,434

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Solution

The third proportional to 9,931,331 and 21,332,434 is: 45,821,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931,331 : 21,332,434 = 21,332,434 : x
  2. Step 2: Convert to fraction form
    9,931,331/21,332,434 = 21,332,434/x
  3. Step 3: Cross multiply
    9,931,331x = 21,332,434 × 21,332,434
  4. Step 4: Simplify right side
    9,931,331x = 455,072,740,364,356
  5. Step 5: Solve for x
    x = 455,072,740,364,356/9,931,331
  6. Step 6: Final answer
    x = 45,821,928.64

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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.