Finding the Fourth Proportional to 1,357,485,786.80, 2,036,228,680.20 and 539,598,087.80
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Solution
The fourth proportional to 1,357,485,786.80, 2,036,228,680.20 and 539,598,087.80 is: 809,397,131.70
Step by Step Solution
- Step 1: Write the proportion equation
1,357,485,786.80 : 2,036,228,680.20 = 539,598,087.80 : x - Step 2: Convert to fraction form
1,357,485,786.80/2,036,228,680.20 = 539,598,087.80/x - Step 3: Cross multiply
1,357,485,786.80x = 2,036,228,680.20 × 539,598,087.80 - Step 4: Simplify right side
1,357,485,786.80x = 1,098,745,102,159,437,696 - Step 5: Solve for x
x = 1,098,745,102,159,437,696/1,357,485,786.80 - Step 6: Final answer
x = 809,397,131.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.