Finding the Fourth Proportional to 87,937,673.31, 121,353,542.15 and 48,779,044.65
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Solution
The fourth proportional to 87,937,673.31, 121,353,542.15 and 48,779,044.65 is: 67,314,833.65
Step by Step Solution
- Step 1: Write the proportion equation
87,937,673.31 : 121,353,542.15 = 48,779,044.65 : x - Step 2: Convert to fraction form
87,937,673.31/121,353,542.15 = 48,779,044.65/x - Step 3: Cross multiply
87,937,673.31x = 121,353,542.15 × 48,779,044.65 - Step 4: Simplify right side
87,937,673.31x = 5,919,509,850,726,611 - Step 5: Solve for x
x = 5,919,509,850,726,611/87,937,673.31 - Step 6: Final answer
x = 67,314,833.65
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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.