Finding the Fourth Proportional to 129,186,141.84, 178,272,902.16 and 73,437,652.08
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Solution
The fourth proportional to 129,186,141.84, 178,272,902.16 and 73,437,652.08 is: 101,341,701.03
Step by Step Solution
- Step 1: Write the proportion equation
129,186,141.84 : 178,272,902.16 = 73,437,652.08 : x - Step 2: Convert to fraction form
129,186,141.84/178,272,902.16 = 73,437,652.08/x - Step 3: Cross multiply
129,186,141.84x = 178,272,902.16 × 73,437,652.08 - Step 4: Simplify right side
129,186,141.84x = 13,091,943,364,117,960 - Step 5: Solve for x
x = 13,091,943,364,117,960/129,186,141.84 - Step 6: Final answer
x = 101,341,701.03
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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.