Home / 81,338,943.49-112,206,236.07-51,939,364.93

Finding the Fourth Proportional to 81,338,943.49, 112,206,236.07 and 51,939,364.93

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Solution

The fourth proportional to 81,338,943.49, 112,206,236.07 and 51,939,364.93 is: 71,649,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338,943.49 : 112,206,236.07 = 51,939,364.93 : x
  2. Step 2: Convert to fraction form
    81,338,943.49/112,206,236.07 = 51,939,364.93/x
  3. Step 3: Cross multiply
    81,338,943.49x = 112,206,236.07 × 51,939,364.93
  4. Step 4: Simplify right side
    81,338,943.49x = 5,827,920,642,575,717
  5. Step 5: Solve for x
    x = 5,827,920,642,575,717/81,338,943.49
  6. Step 6: Final answer
    x = 71,649,819.79

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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.