Finding the Fourth Proportional to 216,735,465.29, 299,095,134.99 and 117,616,212.95
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Solution
The fourth proportional to 216,735,465.29, 299,095,134.99 and 117,616,212.95 is: 162,310,478.55
Step by Step Solution
- Step 1: Write the proportion equation
216,735,465.29 : 299,095,134.99 = 117,616,212.95 : x - Step 2: Convert to fraction form
216,735,465.29/299,095,134.99 = 117,616,212.95/x - Step 3: Cross multiply
216,735,465.29x = 299,095,134.99 × 117,616,212.95 - Step 4: Simplify right side
216,735,465.29x = 35,178,437,089,360,028 - Step 5: Solve for x
x = 35,178,437,089,360,028/216,735,465.29 - Step 6: Final answer
x = 162,310,478.55
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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.