Finding the Fourth Proportional to 1,120,214,457.80, 1,680,321,686.70 and 603,653,805.80
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Solution
The fourth proportional to 1,120,214,457.80, 1,680,321,686.70 and 603,653,805.80 is: 905,480,708.70
Step by Step Solution
- Step 1: Write the proportion equation
1,120,214,457.80 : 1,680,321,686.70 = 603,653,805.80 : x - Step 2: Convert to fraction form
1,120,214,457.80/1,680,321,686.70 = 603,653,805.80/x - Step 3: Cross multiply
1,120,214,457.80x = 1,680,321,686.70 × 603,653,805.80 - Step 4: Simplify right side
1,120,214,457.80x = 1,014,332,581,144,730,240 - Step 5: Solve for x
x = 1,014,332,581,144,730,240/1,120,214,457.80 - Step 6: Final answer
x = 905,480,708.70
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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.