Finding the Fourth Proportional to 122,090,531.37, 168,484,894.73 and 67,089,930.81
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Solution
The fourth proportional to 122,090,531.37, 168,484,894.73 and 67,089,930.81 is: 92,584,083.33
Step by Step Solution
- Step 1: Write the proportion equation
122,090,531.37 : 168,484,894.73 = 67,089,930.81 : x - Step 2: Convert to fraction form
122,090,531.37/168,484,894.73 = 67,089,930.81/x - Step 3: Cross multiply
122,090,531.37x = 168,484,894.73 × 67,089,930.81 - Step 4: Simplify right side
122,090,531.37x = 11,303,639,929,965,834 - Step 5: Solve for x
x = 11,303,639,929,965,834/122,090,531.37 - Step 6: Final answer
x = 92,584,083.33
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1.5x scale
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.