Finding the Fourth Proportional to 4,678,386.82, 6,988,405.98 and 3,466,330.74
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Solution
The fourth proportional to 4,678,386.82, 6,988,405.98 and 3,466,330.74 is: 5,177,880.20
Step by Step Solution
- Step 1: Write the proportion equation
4,678,386.82 : 6,988,405.98 = 3,466,330.74 : x - Step 2: Convert to fraction form
4,678,386.82/6,988,405.98 = 3,466,330.74/x - Step 3: Cross multiply
4,678,386.82x = 6,988,405.98 × 3,466,330.74 - Step 4: Simplify right side
4,678,386.82x = 24,224,126,472,073.83 - Step 5: Solve for x
x = 24,224,126,472,073.83/4,678,386.82 - Step 6: Final answer
x = 5,177,880.20
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.