Finding the Fourth Proportional to 103,364,953.70, 142,649,990.25 and 56,955,195.50
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Solution
The fourth proportional to 103,364,953.70, 142,649,990.25 and 56,955,195.50 is: 78,601,670.99
Step by Step Solution
- Step 1: Write the proportion equation
103,364,953.70 : 142,649,990.25 = 56,955,195.50 : x - Step 2: Convert to fraction form
103,364,953.70/142,649,990.25 = 56,955,195.50/x - Step 3: Cross multiply
103,364,953.70x = 142,649,990.25 × 56,955,195.50 - Step 4: Simplify right side
103,364,953.70x = 8,124,658,082,761,844 - Step 5: Solve for x
x = 8,124,658,082,761,844/103,364,953.70 - Step 6: Final answer
x = 78,601,670.99
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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.