Finding the Fourth Proportional to 386,240,506.97, 532,995,680.93 and 218,988,022.68
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Solution
The fourth proportional to 386,240,506.97, 532,995,680.93 and 218,988,022.68 is: 302,194,275.74
Step by Step Solution
- Step 1: Write the proportion equation
386,240,506.97 : 532,995,680.93 = 218,988,022.68 : x - Step 2: Convert to fraction form
386,240,506.97/532,995,680.93 = 218,988,022.68/x - Step 3: Cross multiply
386,240,506.97x = 532,995,680.93 × 218,988,022.68 - Step 4: Simplify right side
386,240,506.97x = 116,719,670,262,745,952 - Step 5: Solve for x
x = 116,719,670,262,745,952/386,240,506.97 - Step 6: Final answer
x = 302,194,275.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.