Finding the Fourth Proportional to 156,465,076.11, 215,922,639.09 and 97,761,783.40
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Solution
The fourth proportional to 156,465,076.11, 215,922,639.09 and 97,761,783.40 is: 134,911,782.23
Step by Step Solution
- Step 1: Write the proportion equation
156,465,076.11 : 215,922,639.09 = 97,761,783.40 : x - Step 2: Convert to fraction form
156,465,076.11/215,922,639.09 = 97,761,783.40/x - Step 3: Cross multiply
156,465,076.11x = 215,922,639.09 × 97,761,783.40 - Step 4: Simplify right side
156,465,076.11x = 21,108,982,273,699,752 - Step 5: Solve for x
x = 21,108,982,273,699,752/156,465,076.11 - Step 6: Final answer
x = 134,911,782.23
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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.