Finding the Fourth Proportional to 26,315,718.21, 39,651,229.32 and 21,805,084.58
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Solution
The fourth proportional to 26,315,718.21, 39,651,229.32 and 21,805,084.58 is: 32,854,828.51
Step by Step Solution
- Step 1: Write the proportion equation
26,315,718.21 : 39,651,229.32 = 21,805,084.58 : x - Step 2: Convert to fraction form
26,315,718.21/39,651,229.32 = 21,805,084.58/x - Step 3: Cross multiply
26,315,718.21x = 39,651,229.32 × 21,805,084.58 - Step 4: Simplify right side
26,315,718.21x = 864,598,408,927,542 - Step 5: Solve for x
x = 864,598,408,927,542/26,315,718.21 - Step 6: Final answer
x = 32,854,828.51
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.