Home / 21,307,383,886.15-31,968,173,883.60-7,143,751,157.23

Finding the Fourth Proportional to 21,307,383,886.15, 31,968,173,883.60 and 7,143,751,157.23

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Solution

The fourth proportional to 21,307,383,886.15, 31,968,173,883.60 and 7,143,751,157.23 is: 10,718,006,508.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307,383,886.15 : 31,968,173,883.60 = 7,143,751,157.23 : x
  2. Step 2: Convert to fraction form
    21,307,383,886.15/31,968,173,883.60 = 7,143,751,157.23/x
  3. Step 3: Cross multiply
    21,307,383,886.15x = 31,968,173,883.60 × 7,143,751,157.23
  4. Step 4: Simplify right side
    21,307,383,886.15x = 228,372,679,175,497,351,168
  5. Step 5: Solve for x
    x = 228,372,679,175,497,351,168/21,307,383,886.15
  6. Step 6: Final answer
    x = 10,718,006,508.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.