Finding the Fourth Proportional to 9,770,127.12, 13,484,389.68 and 5,420,612.88
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Solution
The fourth proportional to 9,770,127.12, 13,484,389.68 and 5,420,612.88 is: 7,481,341.39
Step by Step Solution
- Step 1: Write the proportion equation
9,770,127.12 : 13,484,389.68 = 5,420,612.88 : x - Step 2: Convert to fraction form
9,770,127.12/13,484,389.68 = 5,420,612.88/x - Step 3: Cross multiply
9,770,127.12x = 13,484,389.68 × 5,420,612.88 - Step 4: Simplify right side
9,770,127.12x = 73,093,656,378,347.08 - Step 5: Solve for x
x = 73,093,656,378,347.08/9,770,127.12 - Step 6: Final answer
x = 7,481,341.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.