Finding the Fourth Proportional to 129,487,566.90, 194,200,246.35 and 74,781,851.70
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Solution
The fourth proportional to 129,487,566.90, 194,200,246.35 and 74,781,851.70 is: 112,154,814.32
Step by Step Solution
- Step 1: Write the proportion equation
129,487,566.90 : 194,200,246.35 = 74,781,851.70 : x - Step 2: Convert to fraction form
129,487,566.90/194,200,246.35 = 74,781,851.70/x - Step 3: Cross multiply
129,487,566.90x = 194,200,246.35 × 74,781,851.70 - Step 4: Simplify right side
129,487,566.90x = 14,522,654,022,649,166 - Step 5: Solve for x
x = 14,522,654,022,649,166/129,487,566.90 - Step 6: Final answer
x = 112,154,814.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.