Finding the Fourth Proportional to 16,390,831.40, 24,586,247.10 and 12,086,159.30
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Solution
The fourth proportional to 16,390,831.40, 24,586,247.10 and 12,086,159.30 is: 18,129,238.95
Step by Step Solution
- Step 1: Write the proportion equation
16,390,831.40 : 24,586,247.10 = 12,086,159.30 : x - Step 2: Convert to fraction form
16,390,831.40/24,586,247.10 = 12,086,159.30/x - Step 3: Cross multiply
16,390,831.40x = 24,586,247.10 × 12,086,159.30 - Step 4: Simplify right side
16,390,831.40x = 297,153,299,039,763.06 - Step 5: Solve for x
x = 297,153,299,039,763.06/16,390,831.40 - Step 6: Final answer
x = 18,129,238.95
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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.