Finding the Fourth Proportional to 122,778,035.70, 184,167,053.55 and 84,035,986.80
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Solution
The fourth proportional to 122,778,035.70, 184,167,053.55 and 84,035,986.80 is: 126,053,980.20
Step by Step Solution
- Step 1: Write the proportion equation
122,778,035.70 : 184,167,053.55 = 84,035,986.80 : x - Step 2: Convert to fraction form
122,778,035.70/184,167,053.55 = 84,035,986.80/x - Step 3: Cross multiply
122,778,035.70x = 184,167,053.55 × 84,035,986.80 - Step 4: Simplify right side
122,778,035.70x = 15,476,660,081,122,694 - Step 5: Solve for x
x = 15,476,660,081,122,694/122,778,035.70 - Step 6: Final answer
x = 126,053,980.20
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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.