Finding the Fourth Proportional to 449,382,146.12, 620,166,513.84 and 251,143,634.96
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Solution
The fourth proportional to 449,382,146.12, 620,166,513.84 and 251,143,634.96 is: 346,588,919.72
Step by Step Solution
- Step 1: Write the proportion equation
449,382,146.12 : 620,166,513.84 = 251,143,634.96 : x - Step 2: Convert to fraction form
449,382,146.12/620,166,513.84 = 251,143,634.96/x - Step 3: Cross multiply
449,382,146.12x = 620,166,513.84 × 251,143,634.96 - Step 4: Simplify right side
449,382,146.12x = 155,750,872,566,248,768 - Step 5: Solve for x
x = 155,750,872,566,248,768/449,382,146.12 - Step 6: Final answer
x = 346,588,919.72
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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.