Finding the Fourth Proportional to 343,851,538.20, 515,777,307.30 and 312,106,795.80
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Solution
The fourth proportional to 343,851,538.20, 515,777,307.30 and 312,106,795.80 is: 468,160,193.70
Step by Step Solution
- Step 1: Write the proportion equation
343,851,538.20 : 515,777,307.30 = 312,106,795.80 : x - Step 2: Convert to fraction form
343,851,538.20/515,777,307.30 = 312,106,795.80/x - Step 3: Cross multiply
343,851,538.20x = 515,777,307.30 × 312,106,795.80 - Step 4: Simplify right side
343,851,538.20x = 160,977,602,727,754,944 - Step 5: Solve for x
x = 160,977,602,727,754,944/343,851,538.20 - Step 6: Final answer
x = 468,160,193.70
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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.