Finding the Fourth Proportional to 130,620,826.55, 180,256,770.18 and 71,883,491.68
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Solution
The fourth proportional to 130,620,826.55, 180,256,770.18 and 71,883,491.68 is: 99,199,234.77
Step by Step Solution
- Step 1: Write the proportion equation
130,620,826.55 : 180,256,770.18 = 71,883,491.68 : x - Step 2: Convert to fraction form
130,620,826.55/180,256,770.18 = 71,883,491.68/x - Step 3: Cross multiply
130,620,826.55x = 180,256,770.18 × 71,883,491.68 - Step 4: Simplify right side
130,620,826.55x = 12,957,486,038,596,418 - Step 5: Solve for x
x = 12,957,486,038,596,418/130,620,826.55 - Step 6: Final answer
x = 99,199,234.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.