Finding the Fourth Proportional to 1,357,485,847.80, 2,036,228,771.70 and 539,598,148.80
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Solution
The fourth proportional to 1,357,485,847.80, 2,036,228,771.70 and 539,598,148.80 is: 809,397,223.20
Step by Step Solution
- Step 1: Write the proportion equation
1,357,485,847.80 : 2,036,228,771.70 = 539,598,148.80 : x - Step 2: Convert to fraction form
1,357,485,847.80/2,036,228,771.70 = 539,598,148.80/x - Step 3: Cross multiply
1,357,485,847.80x = 2,036,228,771.70 × 539,598,148.80 - Step 4: Simplify right side
1,357,485,847.80x = 1,098,745,275,742,617,728 - Step 5: Solve for x
x = 1,098,745,275,742,617,728/1,357,485,847.80 - Step 6: Final answer
x = 809,397,223.20
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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.