Finding the Fourth Proportional to 217,808,799.13, 300,574,478.72 and 118,689,239.99
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Solution
The fourth proportional to 217,808,799.13, 300,574,478.72 and 118,689,239.99 is: 163,790,244.40
Step by Step Solution
- Step 1: Write the proportion equation
217,808,799.13 : 300,574,478.72 = 118,689,239.99 : x - Step 2: Convert to fraction form
217,808,799.13/300,574,478.72 = 118,689,239.99/x - Step 3: Cross multiply
217,808,799.13x = 300,574,478.72 × 118,689,239.99 - Step 4: Simplify right side
217,808,799.13x = 35,674,956,440,994,924 - Step 5: Solve for x
x = 35,674,956,440,994,924/217,808,799.13 - Step 6: Final answer
x = 163,790,244.40
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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.