Finding the Fourth Proportional to 420,744,324.68, 631,116,492.49 and 114,036,437.55
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Solution
The fourth proportional to 420,744,324.68, 631,116,492.49 and 114,036,437.55 is: 171,054,657.81
Step by Step Solution
- Step 1: Write the proportion equation
420,744,324.68 : 631,116,492.49 = 114,036,437.55 : x - Step 2: Convert to fraction form
420,744,324.68/631,116,492.49 = 114,036,437.55/x - Step 3: Cross multiply
420,744,324.68x = 631,116,492.49 × 114,036,437.55 - Step 4: Simplify right side
420,744,324.68x = 71,970,276,484,480,416 - Step 5: Solve for x
x = 71,970,276,484,480,416/420,744,324.68 - Step 6: Final answer
x = 171,054,657.81
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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.