Finding the Fourth Proportional to 15,962,831.98, 22,028,707.29 and 8,620,664.41
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Solution
The fourth proportional to 15,962,831.98, 22,028,707.29 and 8,620,664.41 is: 11,896,516.43
Step by Step Solution
- Step 1: Write the proportion equation
15,962,831.98 : 22,028,707.29 = 8,620,664.41 : x - Step 2: Convert to fraction form
15,962,831.98/22,028,707.29 = 8,620,664.41/x - Step 3: Cross multiply
15,962,831.98x = 22,028,707.29 × 8,620,664.41 - Step 4: Simplify right side
15,962,831.98x = 189,902,092,933,210.53 - Step 5: Solve for x
x = 189,902,092,933,210.53/15,962,831.98 - Step 6: Final answer
x = 11,896,516.43
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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.