Finding the Fourth Proportional to 15,472,718.16, 21,352,862.99 and 8,503,642.74
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Solution
The fourth proportional to 15,472,718.16, 21,352,862.99 and 8,503,642.74 is: 11,735,308.33
Step by Step Solution
- Step 1: Write the proportion equation
15,472,718.16 : 21,352,862.99 = 8,503,642.74 : x - Step 2: Convert to fraction form
15,472,718.16/21,352,862.99 = 8,503,642.74/x - Step 3: Cross multiply
15,472,718.16x = 21,352,862.99 × 8,503,642.74 - Step 4: Simplify right side
15,472,718.16x = 181,577,118,300,609.97 - Step 5: Solve for x
x = 181,577,118,300,609.97/15,472,718.16 - Step 6: Final answer
x = 11,735,308.33
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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.