Finding the Fourth Proportional to 19,423,215.63, 26,804,033.51 and 10,721,385.99
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Solution
The fourth proportional to 19,423,215.63, 26,804,033.51 and 10,721,385.99 is: 14,795,510.42
Step by Step Solution
- Step 1: Write the proportion equation
19,423,215.63 : 26,804,033.51 = 10,721,385.99 : x - Step 2: Convert to fraction form
19,423,215.63/26,804,033.51 = 10,721,385.99/x - Step 3: Cross multiply
19,423,215.63x = 26,804,033.51 × 10,721,385.99 - Step 4: Simplify right side
19,423,215.63x = 287,376,389,295,997.56 - Step 5: Solve for x
x = 287,376,389,295,997.56/19,423,215.63 - Step 6: Final answer
x = 14,795,510.42
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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.