Finding the Fourth Proportional to 393,277,310,055.47, 542,716,912,026.66 and 219,664,983,147.18
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Solution
The fourth proportional to 393,277,310,055.47, 542,716,912,026.66 and 219,664,983,147.18 is: 303,134,450,643.01
Step by Step Solution
- Step 1: Write the proportion equation
393,277,310,055.47 : 542,716,912,026.66 = 219,664,983,147.18 : x - Step 2: Convert to fraction form
393,277,310,055.47/542,716,912,026.66 = 219,664,983,147.18/x - Step 3: Cross multiply
393,277,310,055.47x = 542,716,912,026.66 × 219,664,983,147.18 - Step 4: Simplify right side
393,277,310,055.47x = 119,215,901,334,025,831,186,432 - Step 5: Solve for x
x = 119,215,901,334,025,831,186,432/393,277,310,055.47 - Step 6: Final answer
x = 303,134,450,643.01
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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.