Finding the Fourth Proportional to 15,472,718.66, 21,352,863.68 and 8,503,643.24
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Solution
The fourth proportional to 15,472,718.66, 21,352,863.68 and 8,503,643.24 is: 11,735,309.02
Step by Step Solution
- Step 1: Write the proportion equation
15,472,718.66 : 21,352,863.68 = 8,503,643.24 : x - Step 2: Convert to fraction form
15,472,718.66/21,352,863.68 = 8,503,643.24/x - Step 3: Cross multiply
15,472,718.66x = 21,352,863.68 × 8,503,643.24 - Step 4: Simplify right side
15,472,718.66x = 181,577,134,887,073.53 - Step 5: Solve for x
x = 181,577,134,887,073.53/15,472,718.66 - Step 6: Final answer
x = 11,735,309.02
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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.