Finding the Fourth Proportional to 19,574,427.70, 29,361,641.55 and 11,491,275.70
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Solution
The fourth proportional to 19,574,427.70, 29,361,641.55 and 11,491,275.70 is: 17,236,913.55
Step by Step Solution
- Step 1: Write the proportion equation
19,574,427.70 : 29,361,641.55 = 11,491,275.70 : x - Step 2: Convert to fraction form
19,574,427.70/29,361,641.55 = 11,491,275.70/x - Step 3: Cross multiply
19,574,427.70x = 29,361,641.55 × 11,491,275.70 - Step 4: Simplify right side
19,574,427.70x = 337,402,718,055,625.31 - Step 5: Solve for x
x = 337,402,718,055,625.31/19,574,427.70 - Step 6: Final answer
x = 17,236,913.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.