Finding the Fourth Proportional to 160,611,971.67, 221,645,849.49 and 87,273,113.67
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Solution
The fourth proportional to 160,611,971.67, 221,645,849.49 and 87,273,113.67 is: 120,437,618.79
Step by Step Solution
- Step 1: Write the proportion equation
160,611,971.67 : 221,645,849.49 = 87,273,113.67 : x - Step 2: Convert to fraction form
160,611,971.67/221,645,849.49 = 87,273,113.67/x - Step 3: Cross multiply
160,611,971.67x = 221,645,849.49 × 87,273,113.67 - Step 4: Simplify right side
160,611,971.67x = 19,343,723,417,024,484 - Step 5: Solve for x
x = 19,343,723,417,024,484/160,611,971.67 - Step 6: Final answer
x = 120,437,618.79
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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.