Finding the Fourth Proportional to 121,392,559.08, 167,521,373.64 and 65,637,582.03
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Solution
The fourth proportional to 121,392,559.08, 167,521,373.64 and 65,637,582.03 is: 90,579,669.69
Step by Step Solution
- Step 1: Write the proportion equation
121,392,559.08 : 167,521,373.64 = 65,637,582.03 : x - Step 2: Convert to fraction form
121,392,559.08/167,521,373.64 = 65,637,582.03/x - Step 3: Cross multiply
121,392,559.08x = 167,521,373.64 × 65,637,582.03 - Step 4: Simplify right side
121,392,559.08x = 10,995,697,904,073,778 - Step 5: Solve for x
x = 10,995,697,904,073,778/121,392,559.08 - Step 6: Final answer
x = 90,579,669.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.