Finding the Fourth Proportional to 43,842,787.80, 65,764,181.70 and 42,583,075.80
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Solution
The fourth proportional to 43,842,787.80, 65,764,181.70 and 42,583,075.80 is: 63,874,613.70
Step by Step Solution
- Step 1: Write the proportion equation
43,842,787.80 : 65,764,181.70 = 42,583,075.80 : x - Step 2: Convert to fraction form
43,842,787.80/65,764,181.70 = 42,583,075.80/x - Step 3: Cross multiply
43,842,787.80x = 65,764,181.70 × 42,583,075.80 - Step 4: Simplify right side
43,842,787.80x = 2,800,441,134,256,073 - Step 5: Solve for x
x = 2,800,441,134,256,073/43,842,787.80 - Step 6: Final answer
x = 63,874,613.70
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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.