Home / 71,105,076.84-106,657,615.56-19,987,095.66

Finding the Fourth Proportional to 71,105,076.84, 106,657,615.56 and 19,987,095.66

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Solution

The fourth proportional to 71,105,076.84, 106,657,615.56 and 19,987,095.66 is: 29,980,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,105,076.84 : 106,657,615.56 = 19,987,095.66 : x
  2. Step 2: Convert to fraction form
    71,105,076.84/106,657,615.56 = 19,987,095.66/x
  3. Step 3: Cross multiply
    71,105,076.84x = 106,657,615.56 × 19,987,095.66
  4. Step 4: Simplify right side
    71,105,076.84x = 2,131,775,965,065,224.50
  5. Step 5: Solve for x
    x = 2,131,775,965,065,224.50/71,105,076.84
  6. Step 6: Final answer
    x = 29,980,643.57

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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.