Finding the Fourth Proportional to 88,731,659.70, 133,097,489.55 and 85,330,437.30
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Solution
The fourth proportional to 88,731,659.70, 133,097,489.55 and 85,330,437.30 is: 127,995,655.95
Step by Step Solution
- Step 1: Write the proportion equation
88,731,659.70 : 133,097,489.55 = 85,330,437.30 : x - Step 2: Convert to fraction form
88,731,659.70/133,097,489.55 = 85,330,437.30/x - Step 3: Cross multiply
88,731,659.70x = 133,097,489.55 × 85,330,437.30 - Step 4: Simplify right side
88,731,659.70x = 11,357,266,986,833,680 - Step 5: Solve for x
x = 11,357,266,986,833,680/88,731,659.70 - Step 6: Final answer
x = 127,995,655.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.