Finding the Fourth Proportional to 19,578,054.80, 29,367,082.20 and 14,539,206.80
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Solution
The fourth proportional to 19,578,054.80, 29,367,082.20 and 14,539,206.80 is: 21,808,810.20
Step by Step Solution
- Step 1: Write the proportion equation
19,578,054.80 : 29,367,082.20 = 14,539,206.80 : x - Step 2: Convert to fraction form
19,578,054.80/29,367,082.20 = 14,539,206.80/x - Step 3: Cross multiply
19,578,054.80x = 29,367,082.20 × 14,539,206.80 - Step 4: Simplify right side
19,578,054.80x = 426,974,081,218,399 - Step 5: Solve for x
x = 426,974,081,218,399/19,578,054.80 - Step 6: Final answer
x = 21,808,810.20
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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.