Finding the Fourth Proportional to 215,540,989.20, 323,311,483.80 and 106,418,437.20
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Solution
The fourth proportional to 215,540,989.20, 323,311,483.80 and 106,418,437.20 is: 159,627,655.80
Step by Step Solution
- Step 1: Write the proportion equation
215,540,989.20 : 323,311,483.80 = 106,418,437.20 : x - Step 2: Convert to fraction form
215,540,989.20/323,311,483.80 = 106,418,437.20/x - Step 3: Cross multiply
215,540,989.20x = 323,311,483.80 × 106,418,437.20 - Step 4: Simplify right side
215,540,989.20x = 34,406,302,834,809,120 - Step 5: Solve for x
x = 34,406,302,834,809,120/215,540,989.20 - Step 6: Final answer
x = 159,627,655.80
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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.