Finding the Fourth Proportional to 7,119,327.20, 10,680,799.12 and 2,070,637.70
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Solution
The fourth proportional to 7,119,327.20, 10,680,799.12 and 2,070,637.70 is: 3,106,482.49
Step by Step Solution
- Step 1: Write the proportion equation
7,119,327.20 : 10,680,799.12 = 2,070,637.70 : x - Step 2: Convert to fraction form
7,119,327.20/10,680,799.12 = 2,070,637.70/x - Step 3: Cross multiply
7,119,327.20x = 10,680,799.12 × 2,070,637.70 - Step 4: Simplify right side
7,119,327.20x = 22,116,065,265,418.23 - Step 5: Solve for x
x = 22,116,065,265,418.23/7,119,327.20 - Step 6: Final answer
x = 3,106,482.49
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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.