Finding the Fourth Proportional to 137,416,140.08, 189,635,542.79 and 74,692,385.63
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Solution
The fourth proportional to 137,416,140.08, 189,635,542.79 and 74,692,385.63 is: 103,076,182.19
Step by Step Solution
- Step 1: Write the proportion equation
137,416,140.08 : 189,635,542.79 = 74,692,385.63 : x - Step 2: Convert to fraction form
137,416,140.08/189,635,542.79 = 74,692,385.63/x - Step 3: Cross multiply
137,416,140.08x = 189,635,542.79 × 74,692,385.63 - Step 4: Simplify right side
137,416,140.08x = 14,164,331,089,903,406 - Step 5: Solve for x
x = 14,164,331,089,903,406/137,416,140.08 - Step 6: Final answer
x = 103,076,182.19
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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.