Finding the Fourth Proportional to 154,968,799.68, 213,857,162.40 and 84,404,686.99
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Solution
The fourth proportional to 154,968,799.68, 213,857,162.40 and 84,404,686.99 is: 116,478,587.24
Step by Step Solution
- Step 1: Write the proportion equation
154,968,799.68 : 213,857,162.40 = 84,404,686.99 : x - Step 2: Convert to fraction form
154,968,799.68/213,857,162.40 = 84,404,686.99/x - Step 3: Cross multiply
154,968,799.68x = 213,857,162.40 × 84,404,686.99 - Step 4: Simplify right side
154,968,799.68x = 18,050,546,852,941,596 - Step 5: Solve for x
x = 18,050,546,852,941,596/154,968,799.68 - Step 6: Final answer
x = 116,478,587.24
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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.