Finding the Fourth Proportional to 28,420,771.37, 42,614,838.59 and 11,128,726.19
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Solution
The fourth proportional to 28,420,771.37, 42,614,838.59 and 11,128,726.19 is: 16,686,699.47
Step by Step Solution
- Step 1: Write the proportion equation
28,420,771.37 : 42,614,838.59 = 11,128,726.19 : x - Step 2: Convert to fraction form
28,420,771.37/42,614,838.59 = 11,128,726.19/x - Step 3: Cross multiply
28,420,771.37x = 42,614,838.59 × 11,128,726.19 - Step 4: Simplify right side
28,420,771.37x = 474,248,870,350,049.19 - Step 5: Solve for x
x = 474,248,870,350,049.19/28,420,771.37 - Step 6: Final answer
x = 16,686,699.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.