Finding the Fourth Proportional to 201,855,689.80, 302,925,252.30 and 86,922,716.20
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Solution
The fourth proportional to 201,855,689.80, 302,925,252.30 and 86,922,716.20 is: 130,445,100.47
Step by Step Solution
- Step 1: Write the proportion equation
201,855,689.80 : 302,925,252.30 = 86,922,716.20 : x - Step 2: Convert to fraction form
201,855,689.80/302,925,252.30 = 86,922,716.20/x - Step 3: Cross multiply
201,855,689.80x = 302,925,252.30 × 86,922,716.20 - Step 4: Simplify right side
201,855,689.80x = 26,331,085,735,486,300 - Step 5: Solve for x
x = 26,331,085,735,486,300/201,855,689.80 - Step 6: Final answer
x = 130,445,100.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.