Finding the Fourth Proportional to 19,423,206.63, 26,804,021.11 and 10,721,376.95
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Solution
The fourth proportional to 19,423,206.63, 26,804,021.11 and 10,721,376.95 is: 14,795,497.95
Step by Step Solution
- Step 1: Write the proportion equation
19,423,206.63 : 26,804,021.11 = 10,721,376.95 : x - Step 2: Convert to fraction form
19,423,206.63/26,804,021.11 = 10,721,376.95/x - Step 3: Cross multiply
19,423,206.63x = 26,804,021.11 × 10,721,376.95 - Step 4: Simplify right side
19,423,206.63x = 287,376,013,935,243.88 - Step 5: Solve for x
x = 287,376,013,935,243.88/19,423,206.63 - Step 6: Final answer
x = 14,795,497.95
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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.