Home / 21,080,220,937.84-31,619,167,504.26-15,413,616,362.15

Finding the Fourth Proportional to 21,080,220,937.84, 31,619,167,504.26 and 15,413,616,362.15

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Solution

The fourth proportional to 21,080,220,937.84, 31,619,167,504.26 and 15,413,616,362.15 is: 23,119,573,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080,220,937.84 : 31,619,167,504.26 = 15,413,616,362.15 : x
  2. Step 2: Convert to fraction form
    21,080,220,937.84/31,619,167,504.26 = 15,413,616,362.15/x
  3. Step 3: Cross multiply
    21,080,220,937.84x = 31,619,167,504.26 × 15,413,616,362.15
  4. Step 4: Simplify right side
    21,080,220,937.84x = 487,365,717,601,223,507,968
  5. Step 5: Solve for x
    x = 487,365,717,601,223,507,968/21,080,220,937.84
  6. Step 6: Final answer
    x = 23,119,573,511.04

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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.