Home / 121,303,880.71-181,770,668.26-72,022,689.29

Finding the Fourth Proportional to 121,303,880.71, 181,770,668.26 and 72,022,689.29

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Solution

The fourth proportional to 121,303,880.71, 181,770,668.26 and 72,022,689.29 is: 107,924,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,303,880.71 : 181,770,668.26 = 72,022,689.29 : x
  2. Step 2: Convert to fraction form
    121,303,880.71/181,770,668.26 = 72,022,689.29/x
  3. Step 3: Cross multiply
    121,303,880.71x = 181,770,668.26 × 72,022,689.29
  4. Step 4: Simplify right side
    121,303,880.71x = 13,091,612,362,400,016
  5. Step 5: Solve for x
    x = 13,091,612,362,400,016/121,303,880.71
  6. Step 6: Final answer
    x = 107,924,101.74

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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.