Finding the Fourth Proportional to 2,187,475,098.30, 3,281,358,936.69 and 769,202,789.02
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Solution
The fourth proportional to 2,187,475,098.30, 3,281,358,936.69 and 769,202,789.02 is: 1,153,855,624.61
Step by Step Solution
- Step 1: Write the proportion equation
2,187,475,098.30 : 3,281,358,936.69 = 769,202,789.02 : x - Step 2: Convert to fraction form
2,187,475,098.30/3,281,358,936.69 = 769,202,789.02/x - Step 3: Cross multiply
2,187,475,098.30x = 3,281,358,936.69 × 769,202,789.02 - Step 4: Simplify right side
2,187,475,098.30x = 2,524,030,445,869,446,144 - Step 5: Solve for x
x = 2,524,030,445,869,446,144/2,187,475,098.30 - Step 6: Final answer
x = 1,153,855,624.61
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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.