Finding the Fourth Proportional to 1,872,088,687.80, 2,808,133,031.70 and 1,327,893,103.80
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Solution
The fourth proportional to 1,872,088,687.80, 2,808,133,031.70 and 1,327,893,103.80 is: 1,991,839,655.70
Step by Step Solution
- Step 1: Write the proportion equation
1,872,088,687.80 : 2,808,133,031.70 = 1,327,893,103.80 : x - Step 2: Convert to fraction form
1,872,088,687.80/2,808,133,031.70 = 1,327,893,103.80/x - Step 3: Cross multiply
1,872,088,687.80x = 2,808,133,031.70 × 1,327,893,103.80 - Step 4: Simplify right side
1,872,088,687.80x = 3,728,900,487,347,416,576 - Step 5: Solve for x
x = 3,728,900,487,347,416,576/1,872,088,687.80 - Step 6: Final answer
x = 1,991,839,655.70
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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.