Finding the Fourth Proportional to 2,153,266,311.90, 3,228,624,009.45 and 1,120,145,007.90
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Solution
The fourth proportional to 2,153,266,311.90, 3,228,624,009.45 and 1,120,145,007.90 is: 1,679,554,008.99
Step by Step Solution
- Step 1: Write the proportion equation
2,153,266,311.90 : 3,228,624,009.45 = 1,120,145,007.90 : x - Step 2: Convert to fraction form
2,153,266,311.90/3,228,624,009.45 = 1,120,145,007.90/x - Step 3: Cross multiply
2,153,266,311.90x = 3,228,624,009.45 × 1,120,145,007.90 - Step 4: Simplify right side
2,153,266,311.90x = 3,616,527,066,571,500,032 - Step 5: Solve for x
x = 3,616,527,066,571,500,032/2,153,266,311.90 - Step 6: Final answer
x = 1,679,554,008.99
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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.