Finding the Fourth Proportional to 746,809,406.70, 1,120,214,110.05 and 402,435,638.70
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Solution
The fourth proportional to 746,809,406.70, 1,120,214,110.05 and 402,435,638.70 is: 603,653,458.05
Step by Step Solution
- Step 1: Write the proportion equation
746,809,406.70 : 1,120,214,110.05 = 402,435,638.70 : x - Step 2: Convert to fraction form
746,809,406.70/1,120,214,110.05 = 402,435,638.70/x - Step 3: Cross multiply
746,809,406.70x = 1,120,214,110.05 × 402,435,638.70 - Step 4: Simplify right side
746,809,406.70x = 450,814,080,858,723,776 - Step 5: Solve for x
x = 450,814,080,858,723,776/746,809,406.70 - Step 6: Final answer
x = 603,653,458.05
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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.