Finding the Fourth Proportional to 2,086,562,515.20, 3,129,843,772.80 and 1,119,103,699.20
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Solution
The fourth proportional to 2,086,562,515.20, 3,129,843,772.80 and 1,119,103,699.20 is: 1,678,655,548.80
Step by Step Solution
- Step 1: Write the proportion equation
2,086,562,515.20 : 3,129,843,772.80 = 1,119,103,699.20 : x - Step 2: Convert to fraction form
2,086,562,515.20/3,129,843,772.80 = 1,119,103,699.20/x - Step 3: Cross multiply
2,086,562,515.20x = 3,129,843,772.80 × 1,119,103,699.20 - Step 4: Simplify right side
2,086,562,515.20x = 3,502,619,744,058,564,608 - Step 5: Solve for x
x = 3,502,619,744,058,564,608/2,086,562,515.20 - Step 6: Final answer
x = 1,678,655,548.80
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1.5x scale
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.