Finding the Fourth Proportional to 319,757,497.80, 479,636,246.70 and 315,452,825.70
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Solution
The fourth proportional to 319,757,497.80, 479,636,246.70 and 315,452,825.70 is: 473,179,238.55
Step by Step Solution
- Step 1: Write the proportion equation
319,757,497.80 : 479,636,246.70 = 315,452,825.70 : x - Step 2: Convert to fraction form
319,757,497.80/479,636,246.70 = 315,452,825.70/x - Step 3: Cross multiply
319,757,497.80x = 479,636,246.70 × 315,452,825.70 - Step 4: Simplify right side
319,757,497.80x = 151,302,609,329,657,280 - Step 5: Solve for x
x = 151,302,609,329,657,280/319,757,497.80 - Step 6: Final answer
x = 473,179,238.55
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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.