Finding the Fourth Proportional to 9,905,655.12, 13,672,706.76 and 6,468,429.84
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Solution
The fourth proportional to 9,905,655.12, 13,672,706.76 and 6,468,429.84 is: 8,928,328.65
Step by Step Solution
- Step 1: Write the proportion equation
9,905,655.12 : 13,672,706.76 = 6,468,429.84 : x - Step 2: Convert to fraction form
9,905,655.12/13,672,706.76 = 6,468,429.84/x - Step 3: Cross multiply
9,905,655.12x = 13,672,706.76 × 6,468,429.84 - Step 4: Simplify right side
9,905,655.12x = 88,440,944,399,953.72 - Step 5: Solve for x
x = 88,440,944,399,953.72/9,905,655.12 - Step 6: Final answer
x = 8,928,328.65
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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.