Finding the Fourth Proportional to 86,330,135.40, 129,263,154.53 and 65,761,874.03
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Solution
The fourth proportional to 86,330,135.40, 129,263,154.53 and 65,761,874.03 is: 98,466,048.32
Step by Step Solution
- Step 1: Write the proportion equation
86,330,135.40 : 129,263,154.53 = 65,761,874.03 : x - Step 2: Convert to fraction form
86,330,135.40/129,263,154.53 = 65,761,874.03/x - Step 3: Cross multiply
86,330,135.40x = 129,263,154.53 × 65,761,874.03 - Step 4: Simplify right side
86,330,135.40x = 8,500,587,283,947,159 - Step 5: Solve for x
x = 8,500,587,283,947,159/86,330,135.40 - Step 6: Final answer
x = 98,466,048.32
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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.