Finding the Fourth Proportional to 19,392,938.30, 26,762,461.11 and 10,691,422.31
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Solution
The fourth proportional to 19,392,938.30, 26,762,461.11 and 10,691,422.31 is: 14,754,276.49
Step by Step Solution
- Step 1: Write the proportion equation
19,392,938.30 : 26,762,461.11 = 10,691,422.31 : x - Step 2: Convert to fraction form
19,392,938.30/26,762,461.11 = 10,691,422.31/x - Step 3: Cross multiply
19,392,938.30x = 26,762,461.11 × 10,691,422.31 - Step 4: Simplify right side
19,392,938.30x = 286,128,773,728,504.25 - Step 5: Solve for x
x = 286,128,773,728,504.25/19,392,938.30 - Step 6: Final answer
x = 14,754,276.49
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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.