Finding the Fourth Proportional to 137,439,633.80, 189,664,994.04 and 75,559,431.08
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Solution
The fourth proportional to 137,439,633.80, 189,664,994.04 and 75,559,431.08 is: 104,271,079.96
Step by Step Solution
- Step 1: Write the proportion equation
137,439,633.80 : 189,664,994.04 = 75,559,431.08 : x - Step 2: Convert to fraction form
137,439,633.80/189,664,994.04 = 75,559,431.08/x - Step 3: Cross multiply
137,439,633.80x = 189,664,994.04 × 75,559,431.08 - Step 4: Simplify right side
137,439,633.80x = 14,330,979,045,644,804 - Step 5: Solve for x
x = 14,330,979,045,644,804/137,439,633.80 - Step 6: Final answer
x = 104,271,079.96
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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.