Finding the Fourth Proportional to 81,656,101.80, 122,484,152.70 and 74,097,829.80
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Solution
The fourth proportional to 81,656,101.80, 122,484,152.70 and 74,097,829.80 is: 111,146,744.70
Step by Step Solution
- Step 1: Write the proportion equation
81,656,101.80 : 122,484,152.70 = 74,097,829.80 : x - Step 2: Convert to fraction form
81,656,101.80/122,484,152.70 = 74,097,829.80/x - Step 3: Cross multiply
81,656,101.80x = 122,484,152.70 × 74,097,829.80 - Step 4: Simplify right side
81,656,101.80x = 9,075,809,899,961,810 - Step 5: Solve for x
x = 9,075,809,899,961,810/81,656,101.80 - Step 6: Final answer
x = 111,146,744.70
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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.