Finding the Fourth Proportional to 1,259,011,580.55, 1,737,405,299.09 and 694,484,101.85
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Solution
The fourth proportional to 1,259,011,580.55, 1,737,405,299.09 and 694,484,101.85 is: 958,371,136.00
Step by Step Solution
- Step 1: Write the proportion equation
1,259,011,580.55 : 1,737,405,299.09 = 694,484,101.85 : x - Step 2: Convert to fraction form
1,259,011,580.55/1,737,405,299.09 = 694,484,101.85/x - Step 3: Cross multiply
1,259,011,580.55x = 1,737,405,299.09 × 694,484,101.85 - Step 4: Simplify right side
1,259,011,580.55x = 1,206,600,358,686,856,192 - Step 5: Solve for x
x = 1,206,600,358,686,856,192/1,259,011,580.55 - Step 6: Final answer
x = 958,371,136.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.