Finding the Fourth Proportional to 316,911,379.80, 475,367,069.70 and 144,724,495.80
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Solution
The fourth proportional to 316,911,379.80, 475,367,069.70 and 144,724,495.80 is: 217,086,743.70
Step by Step Solution
- Step 1: Write the proportion equation
316,911,379.80 : 475,367,069.70 = 144,724,495.80 : x - Step 2: Convert to fraction form
316,911,379.80/475,367,069.70 = 144,724,495.80/x - Step 3: Cross multiply
316,911,379.80x = 475,367,069.70 × 144,724,495.80 - Step 4: Simplify right side
316,911,379.80x = 68,797,259,482,255,960 - Step 5: Solve for x
x = 68,797,259,482,255,960/316,911,379.80 - Step 6: Final answer
x = 217,086,743.70
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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.