Finding the Fourth Proportional to 106,618,796.71, 147,143,801.96 and 64,793,209.03
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Solution
The fourth proportional to 106,618,796.71, 147,143,801.96 and 64,793,209.03 is: 89,420,621.99
Step by Step Solution
- Step 1: Write the proportion equation
106,618,796.71 : 147,143,801.96 = 64,793,209.03 : x - Step 2: Convert to fraction form
106,618,796.71/147,143,801.96 = 64,793,209.03/x - Step 3: Cross multiply
106,618,796.71x = 147,143,801.96 × 64,793,209.03 - Step 4: Simplify right side
106,618,796.71x = 9,533,919,117,863,204 - Step 5: Solve for x
x = 9,533,919,117,863,204/106,618,796.71 - Step 6: Final answer
x = 89,420,621.99
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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.