Finding the Fourth Proportional to 285,682,072.19, 394,209,737.70 and 160,208,447.28
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Solution
The fourth proportional to 285,682,072.19, 394,209,737.70 and 160,208,447.28 is: 221,069,979.98
Step by Step Solution
- Step 1: Write the proportion equation
285,682,072.19 : 394,209,737.70 = 160,208,447.28 : x - Step 2: Convert to fraction form
285,682,072.19/394,209,737.70 = 160,208,447.28/x - Step 3: Cross multiply
285,682,072.19x = 394,209,737.70 × 160,208,447.28 - Step 4: Simplify right side
285,682,072.19x = 63,155,729,979,713,408 - Step 5: Solve for x
x = 63,155,729,979,713,408/285,682,072.19 - Step 6: Final answer
x = 221,069,979.98
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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.