Finding the Fourth Proportional to 103,551,198.56, 142,899,754.62 and 56,509,202.78
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Solution
The fourth proportional to 103,551,198.56, 142,899,754.62 and 56,509,202.78 is: 77,982,209.03
Step by Step Solution
- Step 1: Write the proportion equation
103,551,198.56 : 142,899,754.62 = 56,509,202.78 : x - Step 2: Convert to fraction form
103,551,198.56/142,899,754.62 = 56,509,202.78/x - Step 3: Cross multiply
103,551,198.56x = 142,899,754.62 × 56,509,202.78 - Step 4: Simplify right side
103,551,198.56x = 8,075,151,211,033,822 - Step 5: Solve for x
x = 8,075,151,211,033,822/103,551,198.56 - Step 6: Final answer
x = 77,982,209.03
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.