Finding the Fourth Proportional to 826,943,253.20, 1,240,414,879.80 and 366,927,923.60
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Solution
The fourth proportional to 826,943,253.20, 1,240,414,879.80 and 366,927,923.60 is: 550,391,885.40
Step by Step Solution
- Step 1: Write the proportion equation
826,943,253.20 : 1,240,414,879.80 = 366,927,923.60 : x - Step 2: Convert to fraction form
826,943,253.20/1,240,414,879.80 = 366,927,923.60/x - Step 3: Cross multiply
826,943,253.20x = 1,240,414,879.80 × 366,927,923.60 - Step 4: Simplify right side
826,943,253.20x = 455,142,856,247,557,568 - Step 5: Solve for x
x = 455,142,856,247,557,568/826,943,253.20 - Step 6: Final answer
x = 550,391,885.40
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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.