Finding the Fourth Proportional to 212,885,117.70, 293,780,920.05 and 118,798,268.46
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Solution
The fourth proportional to 212,885,117.70, 293,780,920.05 and 118,798,268.46 is: 163,941,307.81
Step by Step Solution
- Step 1: Write the proportion equation
212,885,117.70 : 293,780,920.05 = 118,798,268.46 : x - Step 2: Convert to fraction form
212,885,117.70/293,780,920.05 = 118,798,268.46/x - Step 3: Cross multiply
212,885,117.70x = 293,780,920.05 × 118,798,268.46 - Step 4: Simplify right side
212,885,117.70x = 34,900,664,608,525,696 - Step 5: Solve for x
x = 34,900,664,608,525,696/212,885,117.70 - Step 6: Final answer
x = 163,941,307.81
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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.