Finding the Fourth Proportional to 526,531,657.59, 726,636,528.02 and 291,582,318.09
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Solution
The fourth proportional to 526,531,657.59, 726,636,528.02 and 291,582,318.09 is: 402,396,247.58
Step by Step Solution
- Step 1: Write the proportion equation
526,531,657.59 : 726,636,528.02 = 291,582,318.09 : x - Step 2: Convert to fraction form
526,531,657.59/726,636,528.02 = 291,582,318.09/x - Step 3: Cross multiply
526,531,657.59x = 726,636,528.02 × 291,582,318.09 - Step 4: Simplify right side
526,531,657.59x = 211,874,363,247,482,912 - Step 5: Solve for x
x = 211,874,363,247,482,912/526,531,657.59 - Step 6: Final answer
x = 402,396,247.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.