Finding the Fourth Proportional to 19,685,389.30, 29,528,083.95 and 7,718,125.30
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Solution
The fourth proportional to 19,685,389.30, 29,528,083.95 and 7,718,125.30 is: 11,577,187.95
Step by Step Solution
- Step 1: Write the proportion equation
19,685,389.30 : 29,528,083.95 = 7,718,125.30 : x - Step 2: Convert to fraction form
19,685,389.30/29,528,083.95 = 7,718,125.30/x - Step 3: Cross multiply
19,685,389.30x = 29,528,083.95 × 7,718,125.30 - Step 4: Simplify right side
19,685,389.30x = 227,901,451,795,018.94 - Step 5: Solve for x
x = 227,901,451,795,018.94/19,685,389.30 - Step 6: Final answer
x = 11,577,187.95
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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.