Home / 21,046,638,844.64-29,040,670,138.56-12,010,271,172.32

Finding the Fourth Proportional to 21,046,638,844.64, 29,040,670,138.56 and 12,010,271,172.32

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Solution

The fourth proportional to 21,046,638,844.64, 29,040,670,138.56 and 12,010,271,172.32 is: 16,572,067,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046,638,844.64 : 29,040,670,138.56 = 12,010,271,172.32 : x
  2. Step 2: Convert to fraction form
    21,046,638,844.64/29,040,670,138.56 = 12,010,271,172.32/x
  3. Step 3: Cross multiply
    21,046,638,844.64x = 29,040,670,138.56 × 12,010,271,172.32
  4. Step 4: Simplify right side
    21,046,638,844.64x = 348,786,323,390,001,446,912
  5. Step 5: Solve for x
    x = 348,786,323,390,001,446,912/21,046,638,844.64
  6. Step 6: Final answer
    x = 16,572,067,680.96

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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.