Finding the Fourth Proportional to 212,445,479.36, 293,183,774.88 and 118,359,542.72
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Solution
The fourth proportional to 212,445,479.36, 293,183,774.88 and 118,359,542.72 is: 163,341,190.56
Step by Step Solution
- Step 1: Write the proportion equation
212,445,479.36 : 293,183,774.88 = 118,359,542.72 : x - Step 2: Convert to fraction form
212,445,479.36/293,183,774.88 = 118,359,542.72/x - Step 3: Cross multiply
212,445,479.36x = 293,183,774.88 × 118,359,542.72 - Step 4: Simplify right side
212,445,479.36x = 34,701,097,527,720,220 - Step 5: Solve for x
x = 34,701,097,527,720,220/212,445,479.36 - Step 6: Final answer
x = 163,341,190.56
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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.