Finding the Fourth Proportional to 21,576,159.72, 29,776,006.62 and 12,408,810.84
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Solution
The fourth proportional to 21,576,159.72, 29,776,006.62 and 12,408,810.84 is: 17,124,680.13
Step by Step Solution
- Step 1: Write the proportion equation
21,576,159.72 : 29,776,006.62 = 12,408,810.84 : x - Step 2: Convert to fraction form
21,576,159.72/29,776,006.62 = 12,408,810.84/x - Step 3: Cross multiply
21,576,159.72x = 29,776,006.62 × 12,408,810.84 - Step 4: Simplify right side
21,576,159.72x = 369,484,833,718,167.75 - Step 5: Solve for x
x = 369,484,833,718,167.75/21,576,159.72 - Step 6: Final answer
x = 17,124,680.13
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.