Finding the Fourth Proportional to 290,440,405.68, 435,789,261.30 and 152,233,167.18
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Solution
The fourth proportional to 290,440,405.68, 435,789,261.30 and 152,233,167.18 is: 228,417,183.61
Step by Step Solution
- Step 1: Write the proportion equation
290,440,405.68 : 435,789,261.30 = 152,233,167.18 : x - Step 2: Convert to fraction form
290,440,405.68/435,789,261.30 = 152,233,167.18/x - Step 3: Cross multiply
290,440,405.68x = 435,789,261.30 × 152,233,167.18 - Step 4: Simplify right side
290,440,405.68x = 66,341,579,470,731,608 - Step 5: Solve for x
x = 66,341,579,470,731,608/290,440,405.68 - Step 6: Final answer
x = 228,417,183.61
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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.