Finding the Fourth Proportional to 81,350,280.55, 121,976,248.29 and 32,771,396.98
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Solution
The fourth proportional to 81,350,280.55, 121,976,248.29 and 32,771,396.98 is: 49,137,286.65
Step by Step Solution
- Step 1: Write the proportion equation
81,350,280.55 : 121,976,248.29 = 32,771,396.98 : x - Step 2: Convert to fraction form
81,350,280.55/121,976,248.29 = 32,771,396.98/x - Step 3: Cross multiply
81,350,280.55x = 121,976,248.29 × 32,771,396.98 - Step 4: Simplify right side
81,350,280.55x = 3,997,332,054,842,636.50 - Step 5: Solve for x
x = 3,997,332,054,842,636.50/81,350,280.55 - Step 6: Final answer
x = 49,137,286.65
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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.