Finding the Fourth Proportional to 290,645,825.64, 401,088,311.40 and 158,486,488.08
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Solution
The fourth proportional to 290,645,825.64, 401,088,311.40 and 158,486,488.08 is: 218,709,756.95
Step by Step Solution
- Step 1: Write the proportion equation
290,645,825.64 : 401,088,311.40 = 158,486,488.08 : x - Step 2: Convert to fraction form
290,645,825.64/401,088,311.40 = 158,486,488.08/x - Step 3: Cross multiply
290,645,825.64x = 401,088,311.40 × 158,486,488.08 - Step 4: Simplify right side
290,645,825.64x = 63,567,077,883,723,432 - Step 5: Solve for x
x = 63,567,077,883,723,432/290,645,825.64 - Step 6: Final answer
x = 218,709,756.95
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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.