Finding the Fourth Proportional to 75,452,403.80, 113,178,605.70 and 54,885,637.10
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Solution
The fourth proportional to 75,452,403.80, 113,178,605.70 and 54,885,637.10 is: 82,328,455.65
Step by Step Solution
- Step 1: Write the proportion equation
75,452,403.80 : 113,178,605.70 = 54,885,637.10 : x - Step 2: Convert to fraction form
75,452,403.80/113,178,605.70 = 54,885,637.10/x - Step 3: Cross multiply
75,452,403.80x = 113,178,605.70 × 54,885,637.10 - Step 4: Simplify right side
75,452,403.80x = 6,211,879,879,934,192 - Step 5: Solve for x
x = 6,211,879,879,934,192/75,452,403.80 - Step 6: Final answer
x = 82,328,455.65
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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.