Finding the Fourth Proportional to 87,748,083.68, 121,090,880.34 and 48,589,019.91
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Solution
The fourth proportional to 87,748,083.68, 121,090,880.34 and 48,589,019.91 is: 67,052,030.65
Step by Step Solution
- Step 1: Write the proportion equation
87,748,083.68 : 121,090,880.34 = 48,589,019.91 : x - Step 2: Convert to fraction form
87,748,083.68/121,090,880.34 = 48,589,019.91/x - Step 3: Cross multiply
87,748,083.68x = 121,090,880.34 × 48,589,019.91 - Step 4: Simplify right side
87,748,083.68x = 5,883,687,195,759,687 - Step 5: Solve for x
x = 5,883,687,195,759,687/87,748,083.68 - Step 6: Final answer
x = 67,052,030.65
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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.