Finding the Fourth Proportional to 639,528,545.44, 959,384,326.84 and 196,908,675.68
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Solution
The fourth proportional to 639,528,545.44, 959,384,326.84 and 196,908,675.68 is: 295,391,188.73
Step by Step Solution
- Step 1: Write the proportion equation
639,528,545.44 : 959,384,326.84 = 196,908,675.68 : x - Step 2: Convert to fraction form
639,528,545.44/959,384,326.84 = 196,908,675.68/x - Step 3: Cross multiply
639,528,545.44x = 959,384,326.84 × 196,908,675.68 - Step 4: Simplify right side
639,528,545.44x = 188,911,097,266,212,704 - Step 5: Solve for x
x = 188,911,097,266,212,704/639,528,545.44 - Step 6: Final answer
x = 295,391,188.73
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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.