Home / 57,170,852.36-78,896,275.79-31,065,369.65

Finding the Fourth Proportional to 57,170,852.36, 78,896,275.79 and 31,065,369.65

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Solution

The fourth proportional to 57,170,852.36, 78,896,275.79 and 31,065,369.65 is: 42,870,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170,852.36 : 78,896,275.79 = 31,065,369.65 : x
  2. Step 2: Convert to fraction form
    57,170,852.36/78,896,275.79 = 31,065,369.65/x
  3. Step 3: Cross multiply
    57,170,852.36x = 78,896,275.79 × 31,065,369.65
  4. Step 4: Simplify right side
    57,170,852.36x = 2,450,941,970,874,887.50
  5. Step 5: Solve for x
    x = 2,450,941,970,874,887.50/57,170,852.36
  6. Step 6: Final answer
    x = 42,870,481.55

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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.