Finding the Fourth Proportional to 12,929,871, 19,394,903.70 and 5,739,471.84
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Solution
The fourth proportional to 12,929,871, 19,394,903.70 and 5,739,471.84 is: 8,609,250.91
Step by Step Solution
- Step 1: Write the proportion equation
12,929,871 : 19,394,903.70 = 5,739,471.84 : x - Step 2: Convert to fraction form
12,929,871/19,394,903.70 = 5,739,471.84/x - Step 3: Cross multiply
12,929,871x = 19,394,903.70 × 5,739,471.84 - Step 4: Simplify right side
12,929,871x = 111,316,503,625,661.80 - Step 5: Solve for x
x = 111,316,503,625,661.80/12,929,871 - Step 6: Final answer
x = 8,609,250.91
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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.