Finding the Fourth Proportional to 746,809,371.20, 1,120,214,056.80 and 402,435,603.20
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Solution
The fourth proportional to 746,809,371.20, 1,120,214,056.80 and 402,435,603.20 is: 603,653,404.80
Step by Step Solution
- Step 1: Write the proportion equation
746,809,371.20 : 1,120,214,056.80 = 402,435,603.20 : x - Step 2: Convert to fraction form
746,809,371.20/1,120,214,056.80 = 402,435,603.20/x - Step 3: Cross multiply
746,809,371.20x = 1,120,214,056.80 × 402,435,603.20 - Step 4: Simplify right side
746,809,371.20x = 450,814,019,661,427,008 - Step 5: Solve for x
x = 450,814,019,661,427,008/746,809,371.20 - Step 6: Final answer
x = 603,653,404.80
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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.