Finding the Fourth Proportional to 7,780,322.11, 11,671,995.84 and 2,987,659.03
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Solution
The fourth proportional to 7,780,322.11, 11,671,995.84 and 2,987,659.03 is: 4,482,069.42
Step by Step Solution
- Step 1: Write the proportion equation
7,780,322.11 : 11,671,995.84 = 2,987,659.03 : x - Step 2: Convert to fraction form
7,780,322.11/11,671,995.84 = 2,987,659.03/x - Step 3: Cross multiply
7,780,322.11x = 11,671,995.84 × 2,987,659.03 - Step 4: Simplify right side
7,780,322.11x = 34,871,943,769,498.43 - Step 5: Solve for x
x = 34,871,943,769,498.43/7,780,322.11 - Step 6: Final answer
x = 4,482,069.42
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.