Finding the Fourth Proportional to 393,277,309,682.70, 542,716,911,510.95 and 219,664,982,773.31
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Solution
The fourth proportional to 393,277,309,682.70, 542,716,911,510.95 and 219,664,982,773.31 is: 303,134,450,126.35
Step by Step Solution
- Step 1: Write the proportion equation
393,277,309,682.70 : 542,716,911,510.95 = 219,664,982,773.31 : x - Step 2: Convert to fraction form
393,277,309,682.70/542,716,911,510.95 = 219,664,982,773.31/x - Step 3: Cross multiply
393,277,309,682.70x = 542,716,911,510.95 × 219,664,982,773.31 - Step 4: Simplify right side
393,277,309,682.70x = 119,215,901,017,836,848,414,720 - Step 5: Solve for x
x = 119,215,901,017,836,848,414,720/393,277,309,682.70 - Step 6: Final answer
x = 303,134,450,126.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.