Finding the Fourth Proportional to 22,765,743.38, 31,416,972.93 and 12,452,239.70
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Solution
The fourth proportional to 22,765,743.38, 31,416,972.93 and 12,452,239.70 is: 17,184,225.92
Step by Step Solution
- Step 1: Write the proportion equation
22,765,743.38 : 31,416,972.93 = 12,452,239.70 : x - Step 2: Convert to fraction form
22,765,743.38/31,416,972.93 = 12,452,239.70/x - Step 3: Cross multiply
22,765,743.38x = 31,416,972.93 × 12,452,239.70 - Step 4: Simplify right side
22,765,743.38x = 391,211,677,572,771.31 - Step 5: Solve for x
x = 391,211,677,572,771.31/22,765,743.38 - Step 6: Final answer
x = 17,184,225.92
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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.