Finding the Fourth Proportional to 386,723,894.70, 579,235,536.45 and 335,705,558.70
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Solution
The fourth proportional to 386,723,894.70, 579,235,536.45 and 335,705,558.70 is: 502,820,208.55
Step by Step Solution
- Step 1: Write the proportion equation
386,723,894.70 : 579,235,536.45 = 335,705,558.70 : x - Step 2: Convert to fraction form
386,723,894.70/579,235,536.45 = 335,705,558.70/x - Step 3: Cross multiply
386,723,894.70x = 579,235,536.45 × 335,705,558.70 - Step 4: Simplify right side
386,723,894.70x = 194,452,589,382,841,472 - Step 5: Solve for x
x = 194,452,589,382,841,472/386,723,894.70 - Step 6: Final answer
x = 502,820,208.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.