Finding the Fourth Proportional to 228,542,729.76, 315,408,417.91 and 129,441,106.98
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Solution
The fourth proportional to 228,542,729.76, 315,408,417.91 and 129,441,106.98 is: 178,639,744.12
Step by Step Solution
- Step 1: Write the proportion equation
228,542,729.76 : 315,408,417.91 = 129,441,106.98 : x - Step 2: Convert to fraction form
228,542,729.76/315,408,417.91 = 129,441,106.98/x - Step 3: Cross multiply
228,542,729.76x = 315,408,417.91 × 129,441,106.98 - Step 4: Simplify right side
228,542,729.76x = 40,826,814,764,757,264 - Step 5: Solve for x
x = 40,826,814,764,757,264/228,542,729.76 - Step 6: Final answer
x = 178,639,744.12
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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.