Finding the Fourth Proportional to 87,831,764.69, 121,206,355.49 and 48,673,461.65
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Solution
The fourth proportional to 87,831,764.69, 121,206,355.49 and 48,673,461.65 is: 67,168,557.03
Step by Step Solution
- Step 1: Write the proportion equation
87,831,764.69 : 121,206,355.49 = 48,673,461.65 : x - Step 2: Convert to fraction form
87,831,764.69/121,206,355.49 = 48,673,461.65/x - Step 3: Cross multiply
87,831,764.69x = 121,206,355.49 × 48,673,461.65 - Step 4: Simplify right side
87,831,764.69x = 5,899,532,895,194,435 - Step 5: Solve for x
x = 5,899,532,895,194,435/87,831,764.69 - Step 6: Final answer
x = 67,168,557.03
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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.