Finding the Fourth Proportional to 289,656,613.20, 434,484,919.80 and 232,260,985.20
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Solution
The fourth proportional to 289,656,613.20, 434,484,919.80 and 232,260,985.20 is: 348,391,477.80
Step by Step Solution
- Step 1: Write the proportion equation
289,656,613.20 : 434,484,919.80 = 232,260,985.20 : x - Step 2: Convert to fraction form
289,656,613.20/434,484,919.80 = 232,260,985.20/x - Step 3: Cross multiply
289,656,613.20x = 434,484,919.80 × 232,260,985.20 - Step 4: Simplify right side
289,656,613.20x = 100,913,895,527,290,992 - Step 5: Solve for x
x = 100,913,895,527,290,992/289,656,613.20 - Step 6: Final answer
x = 348,391,477.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.