Home / 57,170,770.09-78,896,161.86-31,065,287.29

Finding the Fourth Proportional to 57,170,770.09, 78,896,161.86 and 31,065,287.29

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Solution

The fourth proportional to 57,170,770.09, 78,896,161.86 and 31,065,287.29 is: 42,870,367.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170,770.09 : 78,896,161.86 = 31,065,287.29 : x
  2. Step 2: Convert to fraction form
    57,170,770.09/78,896,161.86 = 31,065,287.29/x
  3. Step 3: Cross multiply
    57,170,770.09x = 78,896,161.86 × 31,065,287.29
  4. Step 4: Simplify right side
    57,170,770.09x = 2,450,931,934,259,240.50
  5. Step 5: Solve for x
    x = 2,450,931,934,259,240.50/57,170,770.09
  6. Step 6: Final answer
    x = 42,870,367.68

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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.