Finding the Fourth Proportional to 319,688,853.70, 448,017,891.50 and 319,688,853.70
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Solution
The fourth proportional to 319,688,853.70, 448,017,891.50 and 319,688,853.70 is: 448,017,891.50
Step by Step Solution
- Step 1: Write the proportion equation
319,688,853.70 : 448,017,891.50 = 319,688,853.70 : x - Step 2: Convert to fraction form
319,688,853.70/448,017,891.50 = 319,688,853.70/x - Step 3: Cross multiply
319,688,853.70x = 448,017,891.50 × 319,688,853.70 - Step 4: Simplify right side
319,688,853.70x = 143,226,326,170,725,968 - Step 5: Solve for x
x = 143,226,326,170,725,968/319,688,853.70 - Step 6: Final answer
x = 448,017,891.50
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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.