Finding the Fourth Proportional to 15,582,178.58, 21,517,194.51 and 9,711,831.42
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Solution
The fourth proportional to 15,582,178.58, 21,517,194.51 and 9,711,831.42 is: 13,410,920.99
Step by Step Solution
- Step 1: Write the proportion equation
15,582,178.58 : 21,517,194.51 = 9,711,831.42 : x - Step 2: Convert to fraction form
15,582,178.58/21,517,194.51 = 9,711,831.42/x - Step 3: Cross multiply
15,582,178.58x = 21,517,194.51 × 9,711,831.42 - Step 4: Simplify right side
15,582,178.58x = 208,971,365,712,469.53 - Step 5: Solve for x
x = 208,971,365,712,469.53/15,582,178.58 - Step 6: Final answer
x = 13,410,920.99
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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.