Finding the Fourth Proportional to 88,731,658.20, 133,097,487.30 and 85,330,435.80
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Solution
The fourth proportional to 88,731,658.20, 133,097,487.30 and 85,330,435.80 is: 127,995,653.70
Step by Step Solution
- Step 1: Write the proportion equation
88,731,658.20 : 133,097,487.30 = 85,330,435.80 : x - Step 2: Convert to fraction form
88,731,658.20/133,097,487.30 = 85,330,435.80/x - Step 3: Cross multiply
88,731,658.20x = 133,097,487.30 × 85,330,435.80 - Step 4: Simplify right side
88,731,658.20x = 11,357,266,595,193,964 - Step 5: Solve for x
x = 11,357,266,595,193,964/88,731,658.20 - Step 6: Final answer
x = 127,995,653.70
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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.