Finding the Fourth Proportional to 9,358,398.99, 12,914,352.61 and 5,228,461.13
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Solution
The fourth proportional to 9,358,398.99, 12,914,352.61 and 5,228,461.13 is: 7,215,143.38
Step by Step Solution
- Step 1: Write the proportion equation
9,358,398.99 : 12,914,352.61 = 5,228,461.13 : x - Step 2: Convert to fraction form
9,358,398.99/12,914,352.61 = 5,228,461.13/x - Step 3: Cross multiply
9,358,398.99x = 12,914,352.61 × 5,228,461.13 - Step 4: Simplify right side
9,358,398.99x = 67,522,190,562,856.13 - Step 5: Solve for x
x = 67,522,190,562,856.13/9,358,398.99 - Step 6: Final answer
x = 7,215,143.38
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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.