Home / 21,307,383,885.96-31,968,173,883.32-7,143,751,157.04

Finding the Fourth Proportional to 21,307,383,885.96, 31,968,173,883.32 and 7,143,751,157.04

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Solution

The fourth proportional to 21,307,383,885.96, 31,968,173,883.32 and 7,143,751,157.04 is: 10,718,006,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307,383,885.96 : 31,968,173,883.32 = 7,143,751,157.04 : x
  2. Step 2: Convert to fraction form
    21,307,383,885.96/31,968,173,883.32 = 7,143,751,157.04/x
  3. Step 3: Cross multiply
    21,307,383,885.96x = 31,968,173,883.32 × 7,143,751,157.04
  4. Step 4: Simplify right side
    21,307,383,885.96x = 228,372,679,167,423,152,128
  5. Step 5: Solve for x
    x = 228,372,679,167,423,152,128/21,307,383,885.96
  6. Step 6: Final answer
    x = 10,718,006,508.43

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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.