Home / 12,821,639,688.64-17,693,864,448-7,106,293,108.48

Finding the Fourth Proportional to 12,821,639,688.64, 17,693,864,448 and 7,106,293,108.48

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Solution

The fourth proportional to 12,821,639,688.64, 17,693,864,448 and 7,106,293,108.48 is: 9,806,685,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,639,688.64 : 17,693,864,448 = 7,106,293,108.48 : x
  2. Step 2: Convert to fraction form
    12,821,639,688.64/17,693,864,448 = 7,106,293,108.48/x
  3. Step 3: Cross multiply
    12,821,639,688.64x = 17,693,864,448 × 7,106,293,108.48
  4. Step 4: Simplify right side
    12,821,639,688.64x = 125,737,786,989,201,670,144
  5. Step 5: Solve for x
    x = 125,737,786,989,201,670,144/12,821,639,688.64
  6. Step 6: Final answer
    x = 9,806,685,419.54

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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.