Finding the Fourth Proportional to 19,561,279.20, 29,343,214.80 and 5,184,146.40
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Solution
The fourth proportional to 19,561,279.20, 29,343,214.80 and 5,184,146.40 is: 7,776,563.07
Step by Step Solution
- Step 1: Write the proportion equation
19,561,279.20 : 29,343,214.80 = 5,184,146.40 : x - Step 2: Convert to fraction form
19,561,279.20/29,343,214.80 = 5,184,146.40/x - Step 3: Cross multiply
19,561,279.20x = 29,343,214.80 × 5,184,146.40 - Step 4: Simplify right side
19,561,279.20x = 152,119,521,369,846.75 - Step 5: Solve for x
x = 152,119,521,369,846.75/19,561,279.20 - Step 6: Final answer
x = 7,776,563.07
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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.