Finding the Fourth Proportional to 9,169,405.20, 13,754,107.80 and 4,917,877.20
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Solution
The fourth proportional to 9,169,405.20, 13,754,107.80 and 4,917,877.20 is: 7,376,815.80
Step by Step Solution
- Step 1: Write the proportion equation
9,169,405.20 : 13,754,107.80 = 4,917,877.20 : x - Step 2: Convert to fraction form
9,169,405.20/13,754,107.80 = 4,917,877.20/x - Step 3: Cross multiply
9,169,405.20x = 13,754,107.80 × 4,917,877.20 - Step 4: Simplify right side
9,169,405.20x = 67,641,013,155,962.16 - Step 5: Solve for x
x = 67,641,013,155,962.16/9,169,405.20 - Step 6: Final answer
x = 7,376,815.80
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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.