Finding the Fourth Proportional to 272,791,391.95, 409,445,781.68 and 168,846,172.17
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Solution
The fourth proportional to 272,791,391.95, 409,445,781.68 and 168,846,172.17 is: 253,429,378.59
Step by Step Solution
- Step 1: Write the proportion equation
272,791,391.95 : 409,445,781.68 = 168,846,172.17 : x - Step 2: Convert to fraction form
272,791,391.95/409,445,781.68 = 168,846,172.17/x - Step 3: Cross multiply
272,791,391.95x = 409,445,781.68 × 168,846,172.17 - Step 4: Simplify right side
272,791,391.95x = 69,133,352,947,821,504 - Step 5: Solve for x
x = 69,133,352,947,821,504/272,791,391.95 - Step 6: Final answer
x = 253,429,378.59
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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.