Home / 21,831,805,392.10-30,127,891,207.82-11,807,300,239.21

Finding the Fourth Proportional to 21,831,805,392.10, 30,127,891,207.82 and 11,807,300,239.21

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Solution

The fourth proportional to 21,831,805,392.10, 30,127,891,207.82 and 11,807,300,239.21 is: 16,294,074,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,831,805,392.10 : 30,127,891,207.82 = 11,807,300,239.21 : x
  2. Step 2: Convert to fraction form
    21,831,805,392.10/30,127,891,207.82 = 11,807,300,239.21/x
  3. Step 3: Cross multiply
    21,831,805,392.10x = 30,127,891,207.82 × 11,807,300,239.21
  4. Step 4: Simplify right side
    21,831,805,392.10x = 355,729,057,064,985,886,720
  5. Step 5: Solve for x
    x = 355,729,057,064,985,886,720/21,831,805,392.10
  6. Step 6: Final answer
    x = 16,294,074,203.95

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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.