Finding the Fourth Proportional to 38,668,677.21, 53,347,671.50 and 22,139,968.19
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Solution
The fourth proportional to 38,668,677.21, 53,347,671.50 and 22,139,968.19 is: 30,544,508.76
Step by Step Solution
- Step 1: Write the proportion equation
38,668,677.21 : 53,347,671.50 = 22,139,968.19 : x - Step 2: Convert to fraction form
38,668,677.21/53,347,671.50 = 22,139,968.19/x - Step 3: Cross multiply
38,668,677.21x = 53,347,671.50 × 22,139,968.19 - Step 4: Simplify right side
38,668,677.21x = 1,181,115,749,643,131.25 - Step 5: Solve for x
x = 1,181,115,749,643,131.25/38,668,677.21 - Step 6: Final answer
x = 30,544,508.76
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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.