Finding the Fourth Proportional to 9,856,786.68, 13,602,386.70 and 5,564,434.68
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Solution
The fourth proportional to 9,856,786.68, 13,602,386.70 and 5,564,434.68 is: 7,678,931.76
Step by Step Solution
- Step 1: Write the proportion equation
9,856,786.68 : 13,602,386.70 = 5,564,434.68 : x - Step 2: Convert to fraction form
9,856,786.68/13,602,386.70 = 5,564,434.68/x - Step 3: Cross multiply
9,856,786.68x = 13,602,386.70 × 5,564,434.68 - Step 4: Simplify right side
9,856,786.68x = 75,689,592,284,250.75 - Step 5: Solve for x
x = 75,689,592,284,250.75/9,856,786.68 - Step 6: Final answer
x = 7,678,931.76
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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.