Finding the Fourth Proportional to 87,485,315.16, 120,727,391.58 and 48,326,249.10
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Solution
The fourth proportional to 87,485,315.16, 120,727,391.58 and 48,326,249.10 is: 66,688,929.31
Step by Step Solution
- Step 1: Write the proportion equation
87,485,315.16 : 120,727,391.58 = 48,326,249.10 : x - Step 2: Convert to fraction form
87,485,315.16/120,727,391.58 = 48,326,249.10/x - Step 3: Cross multiply
87,485,315.16x = 120,727,391.58 × 48,326,249.10 - Step 4: Simplify right side
87,485,315.16x = 5,834,301,998,688,323 - Step 5: Solve for x
x = 5,834,301,998,688,323/87,485,315.16 - Step 6: Final answer
x = 66,688,929.31
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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.