Finding the Fourth Proportional to 108,915,135.99, 163,420,948.85 and 57,087,421.56
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Solution
The fourth proportional to 108,915,135.99, 163,420,948.85 and 57,087,421.56 is: 85,656,419.69
Step by Step Solution
- Step 1: Write the proportion equation
108,915,135.99 : 163,420,948.85 = 57,087,421.56 : x - Step 2: Convert to fraction form
108,915,135.99/163,420,948.85 = 57,087,421.56/x - Step 3: Cross multiply
108,915,135.99x = 163,420,948.85 × 57,087,421.56 - Step 4: Simplify right side
108,915,135.99x = 9,329,280,598,735,148 - Step 5: Solve for x
x = 9,329,280,598,735,148/108,915,135.99 - Step 6: Final answer
x = 85,656,419.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.