Finding the Fourth Proportional to 18,948,121.30, 28,434,877.68 and 6,652,121.08
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Solution
The fourth proportional to 18,948,121.30, 28,434,877.68 and 6,652,121.08 is: 9,982,638.71
Step by Step Solution
- Step 1: Write the proportion equation
18,948,121.30 : 28,434,877.68 = 6,652,121.08 : x - Step 2: Convert to fraction form
18,948,121.30/28,434,877.68 = 6,652,121.08/x - Step 3: Cross multiply
18,948,121.30x = 28,434,877.68 × 6,652,121.08 - Step 4: Simplify right side
18,948,121.30x = 189,152,249,222,349.50 - Step 5: Solve for x
x = 189,152,249,222,349.50/18,948,121.30 - Step 6: Final answer
x = 9,982,638.71
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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.