Finding the Fourth Proportional to 10,506,765.20, 14,497,121.15 and 6,378,966.73
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Solution
The fourth proportional to 10,506,765.20, 14,497,121.15 and 6,378,966.73 is: 8,801,629.40
Step by Step Solution
- Step 1: Write the proportion equation
10,506,765.20 : 14,497,121.15 = 6,378,966.73 : x - Step 2: Convert to fraction form
10,506,765.20/14,497,121.15 = 6,378,966.73/x - Step 3: Cross multiply
10,506,765.20x = 14,497,121.15 × 6,378,966.73 - Step 4: Simplify right side
10,506,765.20x = 92,476,653,461,112.41 - Step 5: Solve for x
x = 92,476,653,461,112.41/10,506,765.20 - Step 6: Final answer
x = 8,801,629.40
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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.