Finding the Fourth Proportional to 343,860,106.20, 515,790,159.30 and 312,115,363.80
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Solution
The fourth proportional to 343,860,106.20, 515,790,159.30 and 312,115,363.80 is: 468,173,045.70
Step by Step Solution
- Step 1: Write the proportion equation
343,860,106.20 : 515,790,159.30 = 312,115,363.80 : x - Step 2: Convert to fraction form
343,860,106.20/515,790,159.30 = 312,115,363.80/x - Step 3: Cross multiply
343,860,106.20x = 515,790,159.30 × 312,115,363.80 - Step 4: Simplify right side
343,860,106.20x = 160,986,033,214,379,456 - Step 5: Solve for x
x = 160,986,033,214,379,456/343,860,106.20 - Step 6: Final answer
x = 468,173,045.70
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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.