Finding the Fourth Proportional to 22,486,451.88, 31,031,313.93 and 12,173,174.94
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Solution
The fourth proportional to 22,486,451.88, 31,031,313.93 and 12,173,174.94 is: 16,798,987.01
Step by Step Solution
- Step 1: Write the proportion equation
22,486,451.88 : 31,031,313.93 = 12,173,174.94 : x - Step 2: Convert to fraction form
22,486,451.88/31,031,313.93 = 12,173,174.94/x - Step 3: Cross multiply
22,486,451.88x = 31,031,313.93 × 12,173,174.94 - Step 4: Simplify right side
22,486,451.88x = 377,749,613,087,948.88 - Step 5: Solve for x
x = 377,749,613,087,948.88/22,486,451.88 - Step 6: Final answer
x = 16,798,987.01
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1.5x scale
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.