Home / 38,396,863,872.66-52,986,475,425.53-21,248,685,403.79

Finding the Fourth Proportional to 38,396,863,872.66, 52,986,475,425.53 and 21,248,685,403.79

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Solution

The fourth proportional to 38,396,863,872.66, 52,986,475,425.53 and 21,248,685,403.79 is: 29,322,523,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,396,863,872.66 : 52,986,475,425.53 = 21,248,685,403.79 : x
  2. Step 2: Convert to fraction form
    38,396,863,872.66/52,986,475,425.53 = 21,248,685,403.79/x
  3. Step 3: Cross multiply
    38,396,863,872.66x = 52,986,475,425.53 × 21,248,685,403.79
  4. Step 4: Simplify right side
    38,396,863,872.66x = 1,125,892,946,972,736,880,640
  5. Step 5: Solve for x
    x = 1,125,892,946,972,736,880,640/38,396,863,872.66
  6. Step 6: Final answer
    x = 29,322,523,597.41

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1.5x scale

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.