Finding the Fourth Proportional to 19,678,643.99, 27,155,216.50 and 11,306,283.11
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Solution
The fourth proportional to 19,678,643.99, 27,155,216.50 and 11,306,283.11 is: 15,601,916.76
Step by Step Solution
- Step 1: Write the proportion equation
19,678,643.99 : 27,155,216.50 = 11,306,283.11 : x - Step 2: Convert to fraction form
19,678,643.99/27,155,216.50 = 11,306,283.11/x - Step 3: Cross multiply
19,678,643.99x = 27,155,216.50 × 11,306,283.11 - Step 4: Simplify right side
19,678,643.99x = 307,024,565,498,301.50 - Step 5: Solve for x
x = 307,024,565,498,301.50/19,678,643.99 - Step 6: Final answer
x = 15,601,916.76
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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.