Home / 21,157,142,173.16-29,195,980,834.55-11,511,911,843.24

Finding the Fourth Proportional to 21,157,142,173.16, 29,195,980,834.55 and 11,511,911,843.24

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Solution

The fourth proportional to 21,157,142,173.16, 29,195,980,834.55 and 11,511,911,843.24 is: 15,885,962,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,157,142,173.16 : 29,195,980,834.55 = 11,511,911,843.24 : x
  2. Step 2: Convert to fraction form
    21,157,142,173.16/29,195,980,834.55 = 11,511,911,843.24/x
  3. Step 3: Cross multiply
    21,157,142,173.16x = 29,195,980,834.55 × 11,511,911,843.24
  4. Step 4: Simplify right side
    21,157,142,173.16x = 336,101,557,544,060,649,472
  5. Step 5: Solve for x
    x = 336,101,557,544,060,649,472/21,157,142,173.16
  6. Step 6: Final answer
    x = 15,885,962,045.03

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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.