Finding the Fourth Proportional to 732,804,520.45, 1,099,206,780.68 and 388,430,752.45
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Solution
The fourth proportional to 732,804,520.45, 1,099,206,780.68 and 388,430,752.45 is: 582,646,128.68
Step by Step Solution
- Step 1: Write the proportion equation
732,804,520.45 : 1,099,206,780.68 = 388,430,752.45 : x - Step 2: Convert to fraction form
732,804,520.45/1,099,206,780.68 = 388,430,752.45/x - Step 3: Cross multiply
732,804,520.45x = 1,099,206,780.68 × 388,430,752.45 - Step 4: Simplify right side
732,804,520.45x = 426,965,716,917,674,560 - Step 5: Solve for x
x = 426,965,716,917,674,560/732,804,520.45 - Step 6: Final answer
x = 582,646,128.68
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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.