Finding the Fourth Proportional to 6,258,420.18, 8,636,321.17 and 3,843,505.62
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Solution
The fourth proportional to 6,258,420.18, 8,636,321.17 and 3,843,505.62 is: 5,303,854.33
Step by Step Solution
- Step 1: Write the proportion equation
6,258,420.18 : 8,636,321.17 = 3,843,505.62 : x - Step 2: Convert to fraction form
6,258,420.18/8,636,321.17 = 3,843,505.62/x - Step 3: Cross multiply
6,258,420.18x = 8,636,321.17 × 3,843,505.62 - Step 4: Simplify right side
6,258,420.18x = 33,193,748,953,019.98 - Step 5: Solve for x
x = 33,193,748,953,019.98/6,258,420.18 - Step 6: Final answer
x = 5,303,854.33
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1.5x scale
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.