Finding the Fourth Proportional to 128,889,764.10, 193,166,684.55 and 52,149,975.30
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Solution
The fourth proportional to 128,889,764.10, 193,166,684.55 and 52,149,975.30 is: 78,157,004.15
Step by Step Solution
- Step 1: Write the proportion equation
128,889,764.10 : 193,166,684.55 = 52,149,975.30 : x - Step 2: Convert to fraction form
128,889,764.10/193,166,684.55 = 52,149,975.30/x - Step 3: Cross multiply
128,889,764.10x = 193,166,684.55 × 52,149,975.30 - Step 4: Simplify right side
128,889,764.10x = 10,073,637,828,065,392 - Step 5: Solve for x
x = 10,073,637,828,065,392/128,889,764.10 - Step 6: Final answer
x = 78,157,004.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.