Finding the Fourth Proportional to 107,553,854.40, 161,330,781.60 and 39,403,435.20
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Solution
The fourth proportional to 107,553,854.40, 161,330,781.60 and 39,403,435.20 is: 59,105,152.80
Step by Step Solution
- Step 1: Write the proportion equation
107,553,854.40 : 161,330,781.60 = 39,403,435.20 : x - Step 2: Convert to fraction form
107,553,854.40/161,330,781.60 = 39,403,435.20/x - Step 3: Cross multiply
107,553,854.40x = 161,330,781.60 × 39,403,435.20 - Step 4: Simplify right side
107,553,854.40x = 6,356,986,998,540,953 - Step 5: Solve for x
x = 6,356,986,998,540,953/107,553,854.40 - Step 6: Final answer
x = 59,105,152.80
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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.