Home / 126,700,039.50-190,121,955.48-68,406,940.53

Finding the Fourth Proportional to 126,700,039.50, 190,121,955.48 and 68,406,940.53

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Solution

The fourth proportional to 126,700,039.50, 190,121,955.48 and 68,406,940.53 is: 102,649,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,700,039.50 : 190,121,955.48 = 68,406,940.53 : x
  2. Step 2: Convert to fraction form
    126,700,039.50/190,121,955.48 = 68,406,940.53/x
  3. Step 3: Cross multiply
    126,700,039.50x = 190,121,955.48 × 68,406,940.53
  4. Step 4: Simplify right side
    126,700,039.50x = 13,005,661,301,967,668
  5. Step 5: Solve for x
    x = 13,005,661,301,967,668/126,700,039.50
  6. Step 6: Final answer
    x = 102,649,228.47

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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.