Home / 12,821,639,685.64-17,693,864,443.86-7,106,293,105.48

Finding the Fourth Proportional to 12,821,639,685.64, 17,693,864,443.86 and 7,106,293,105.48

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Solution

The fourth proportional to 12,821,639,685.64, 17,693,864,443.86 and 7,106,293,105.48 is: 9,806,685,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,639,685.64 : 17,693,864,443.86 = 7,106,293,105.48 : x
  2. Step 2: Convert to fraction form
    12,821,639,685.64/17,693,864,443.86 = 7,106,293,105.48/x
  3. Step 3: Cross multiply
    12,821,639,685.64x = 17,693,864,443.86 × 7,106,293,105.48
  4. Step 4: Simplify right side
    12,821,639,685.64x = 125,737,786,906,700,021,760
  5. Step 5: Solve for x
    x = 125,737,786,906,700,021,760/12,821,639,685.64
  6. Step 6: Final answer
    x = 9,806,685,415.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.