Finding the Fourth Proportional to 199,631,812.20, 299,447,718.30 and 170,406,493.80
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Solution
The fourth proportional to 199,631,812.20, 299,447,718.30 and 170,406,493.80 is: 255,609,740.70
Step by Step Solution
- Step 1: Write the proportion equation
199,631,812.20 : 299,447,718.30 = 170,406,493.80 : x - Step 2: Convert to fraction form
199,631,812.20/299,447,718.30 = 170,406,493.80/x - Step 3: Cross multiply
199,631,812.20x = 299,447,718.30 × 170,406,493.80 - Step 4: Simplify right side
199,631,812.20x = 51,027,835,751,913,104 - Step 5: Solve for x
x = 51,027,835,751,913,104/199,631,812.20 - Step 6: Final answer
x = 255,609,740.70
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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.