Finding the Fourth Proportional to 791,493,120.76, 1,186,683,379.62 and 348,625,620.76
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Solution
The fourth proportional to 791,493,120.76, 1,186,683,379.62 and 348,625,620.76 is: 522,693,399.37
Step by Step Solution
- Step 1: Write the proportion equation
791,493,120.76 : 1,186,683,379.62 = 348,625,620.76 : x - Step 2: Convert to fraction form
791,493,120.76/1,186,683,379.62 = 348,625,620.76/x - Step 3: Cross multiply
791,493,120.76x = 1,186,683,379.62 × 348,625,620.76 - Step 4: Simplify right side
791,493,120.76x = 413,708,229,865,597,184 - Step 5: Solve for x
x = 413,708,229,865,597,184/791,493,120.76 - Step 6: Final answer
x = 522,693,399.37
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1.5x scale
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.