Finding the Fourth Proportional to 88,731,656.20, 133,097,484.30 and 85,330,433.80
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Solution
The fourth proportional to 88,731,656.20, 133,097,484.30 and 85,330,433.80 is: 127,995,650.70
Step by Step Solution
- Step 1: Write the proportion equation
88,731,656.20 : 133,097,484.30 = 85,330,433.80 : x - Step 2: Convert to fraction form
88,731,656.20/133,097,484.30 = 85,330,433.80/x - Step 3: Cross multiply
88,731,656.20x = 133,097,484.30 × 85,330,433.80 - Step 4: Simplify right side
88,731,656.20x = 11,357,266,073,007,688 - Step 5: Solve for x
x = 11,357,266,073,007,688/88,731,656.20 - Step 6: Final answer
x = 127,995,650.70
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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.