Finding the Fourth Proportional to 485,095,387.80, 727,643,081.70 and 242,670,811.80
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Solution
The fourth proportional to 485,095,387.80, 727,643,081.70 and 242,670,811.80 is: 364,006,217.70
Step by Step Solution
- Step 1: Write the proportion equation
485,095,387.80 : 727,643,081.70 = 242,670,811.80 : x - Step 2: Convert to fraction form
485,095,387.80/727,643,081.70 = 242,670,811.80/x - Step 3: Cross multiply
485,095,387.80x = 727,643,081.70 × 242,670,811.80 - Step 4: Simplify right side
485,095,387.80x = 176,577,737,336,792,736 - Step 5: Solve for x
x = 176,577,737,336,792,736/485,095,387.80 - Step 6: Final answer
x = 364,006,217.70
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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.