Finding the Fourth Proportional to 19,075,179.80, 28,612,769.76 and 15,695,718.08
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Solution
The fourth proportional to 19,075,179.80, 28,612,769.76 and 15,695,718.08 is: 23,543,577.17
Step by Step Solution
- Step 1: Write the proportion equation
19,075,179.80 : 28,612,769.76 = 15,695,718.08 : x - Step 2: Convert to fraction form
19,075,179.80/28,612,769.76 = 15,695,718.08/x - Step 3: Cross multiply
19,075,179.80x = 28,612,769.76 × 15,695,718.08 - Step 4: Simplify right side
19,075,179.80x = 449,097,967,640,909.31 - Step 5: Solve for x
x = 449,097,967,640,909.31/19,075,179.80 - Step 6: Final answer
x = 23,543,577.17
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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.