Finding the Fourth Proportional to 38,313,810.98, 57,468,655.98 and 18,863,646.90
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Solution
The fourth proportional to 38,313,810.98, 57,468,655.98 and 18,863,646.90 is: 28,294,455.88
Step by Step Solution
- Step 1: Write the proportion equation
38,313,810.98 : 57,468,655.98 = 18,863,646.90 : x - Step 2: Convert to fraction form
38,313,810.98/57,468,655.98 = 18,863,646.90/x - Step 3: Cross multiply
38,313,810.98x = 57,468,655.98 × 18,863,646.90 - Step 4: Simplify right side
38,313,810.98x = 1,084,068,434,224,293.38 - Step 5: Solve for x
x = 1,084,068,434,224,293.38/38,313,810.98 - Step 6: Final answer
x = 28,294,455.88
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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.