Finding the Fourth Proportional to 217,865,365.60, 326,420,134.80 and 141,148,904.80
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Solution
The fourth proportional to 217,865,365.60, 326,420,134.80 and 141,148,904.80 is: 211,478,517.50
Step by Step Solution
- Step 1: Write the proportion equation
217,865,365.60 : 326,420,134.80 = 141,148,904.80 : x - Step 2: Convert to fraction form
217,865,365.60/326,420,134.80 = 141,148,904.80/x - Step 3: Cross multiply
217,865,365.60x = 326,420,134.80 × 141,148,904.80 - Step 4: Simplify right side
217,865,365.60x = 46,073,844,531,688,376 - Step 5: Solve for x
x = 46,073,844,531,688,376/217,865,365.60 - Step 6: Final answer
x = 211,478,517.50
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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.