Finding the Fourth Proportional to 81,254,089.41, 121,879,722.43 and 32,730,702.85
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Solution
The fourth proportional to 81,254,089.41, 121,879,722.43 and 32,730,702.85 is: 49,095,485.63
Step by Step Solution
- Step 1: Write the proportion equation
81,254,089.41 : 121,879,722.43 = 32,730,702.85 : x - Step 2: Convert to fraction form
81,254,089.41/121,879,722.43 = 32,730,702.85/x - Step 3: Cross multiply
81,254,089.41x = 121,879,722.43 × 32,730,702.85 - Step 4: Simplify right side
81,254,089.41x = 3,989,208,978,490,073 - Step 5: Solve for x
x = 3,989,208,978,490,073/81,254,089.41 - Step 6: Final answer
x = 49,095,485.63
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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.