Finding the Fourth Proportional to 98,537,147.09, 135,975,420.38 and 54,480,688.19
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Solution
The fourth proportional to 98,537,147.09, 135,975,420.38 and 54,480,688.19 is: 75,180,119.35
Step by Step Solution
- Step 1: Write the proportion equation
98,537,147.09 : 135,975,420.38 = 54,480,688.19 : x - Step 2: Convert to fraction form
98,537,147.09/135,975,420.38 = 54,480,688.19/x - Step 3: Cross multiply
98,537,147.09x = 135,975,420.38 × 54,480,688.19 - Step 4: Simplify right side
98,537,147.09x = 7,408,034,478,274,671 - Step 5: Solve for x
x = 7,408,034,478,274,671/98,537,147.09 - Step 6: Final answer
x = 75,180,119.35
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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.