Finding the Fourth Proportional to 290,645,826.64, 401,088,312.78 and 158,486,489.08
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Solution
The fourth proportional to 290,645,826.64, 401,088,312.78 and 158,486,489.08 is: 218,709,758.33
Step by Step Solution
- Step 1: Write the proportion equation
290,645,826.64 : 401,088,312.78 = 158,486,489.08 : x - Step 2: Convert to fraction form
290,645,826.64/401,088,312.78 = 158,486,489.08/x - Step 3: Cross multiply
290,645,826.64x = 401,088,312.78 × 158,486,489.08 - Step 4: Simplify right side
290,645,826.64x = 63,567,078,503,523,096 - Step 5: Solve for x
x = 63,567,078,503,523,096/290,645,826.64 - Step 6: Final answer
x = 218,709,758.33
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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.