Finding the Fourth Proportional to 121,112,958.48, 181,668,355.26 and 38,120,970.96
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Solution
The fourth proportional to 121,112,958.48, 181,668,355.26 and 38,120,970.96 is: 57,181,115.73
Step by Step Solution
- Step 1: Write the proportion equation
121,112,958.48 : 181,668,355.26 = 38,120,970.96 : x - Step 2: Convert to fraction form
121,112,958.48/181,668,355.26 = 38,120,970.96/x - Step 3: Cross multiply
121,112,958.48x = 181,668,355.26 × 38,120,970.96 - Step 4: Simplify right side
121,112,958.48x = 6,925,374,095,217,423 - Step 5: Solve for x
x = 6,925,374,095,217,423/121,112,958.48 - Step 6: Final answer
x = 57,181,115.73
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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.