Finding the Fourth Proportional to 137,416,132.58, 189,635,532.44 and 74,692,378.13
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Solution
The fourth proportional to 137,416,132.58, 189,635,532.44 and 74,692,378.13 is: 103,076,171.84
Step by Step Solution
- Step 1: Write the proportion equation
137,416,132.58 : 189,635,532.44 = 74,692,378.13 : x - Step 2: Convert to fraction form
137,416,132.58/189,635,532.44 = 74,692,378.13/x - Step 3: Cross multiply
137,416,132.58x = 189,635,532.44 × 74,692,378.13 - Step 4: Simplify right side
137,416,132.58x = 14,164,328,894,570,722 - Step 5: Solve for x
x = 14,164,328,894,570,722/137,416,132.58 - Step 6: Final answer
x = 103,076,171.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.