Finding the Fourth Proportional to 89,828,331.80, 134,742,497.70 and 87,308,907.80
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Solution
The fourth proportional to 89,828,331.80, 134,742,497.70 and 87,308,907.80 is: 130,963,361.70
Step by Step Solution
- Step 1: Write the proportion equation
89,828,331.80 : 134,742,497.70 = 87,308,907.80 : x - Step 2: Convert to fraction form
89,828,331.80/134,742,497.70 = 87,308,907.80/x - Step 3: Cross multiply
89,828,331.80x = 134,742,497.70 × 87,308,907.80 - Step 4: Simplify right side
89,828,331.80x = 11,764,220,308,431,010 - Step 5: Solve for x
x = 11,764,220,308,431,010/89,828,331.80 - Step 6: Final answer
x = 130,963,361.70
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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.