Finding the Fourth Proportional to 23,020,698.96, 31,768,453.80 and 12,707,331.84
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Solution
The fourth proportional to 23,020,698.96, 31,768,453.80 and 12,707,331.84 is: 17,536,056.80
Step by Step Solution
- Step 1: Write the proportion equation
23,020,698.96 : 31,768,453.80 = 12,707,331.84 : x - Step 2: Convert to fraction form
23,020,698.96/31,768,453.80 = 12,707,331.84/x - Step 3: Cross multiply
23,020,698.96x = 31,768,453.80 × 12,707,331.84 - Step 4: Simplify right side
23,020,698.96x = 403,692,284,480,309 - Step 5: Solve for x
x = 403,692,284,480,309/23,020,698.96 - Step 6: Final answer
x = 17,536,056.80
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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.