Finding the Fourth Proportional to 384,912,331.80, 577,368,497.70 and 312,352,920.60
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Solution
The fourth proportional to 384,912,331.80, 577,368,497.70 and 312,352,920.60 is: 468,529,380.90
Step by Step Solution
- Step 1: Write the proportion equation
384,912,331.80 : 577,368,497.70 = 312,352,920.60 : x - Step 2: Convert to fraction form
384,912,331.80/577,368,497.70 = 312,352,920.60/x - Step 3: Cross multiply
384,912,331.80x = 577,368,497.70 × 312,352,920.60 - Step 4: Simplify right side
384,912,331.80x = 180,342,736,519,029,408 - Step 5: Solve for x
x = 180,342,736,519,029,408/384,912,331.80 - Step 6: Final answer
x = 468,529,380.90
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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.