Finding the Fourth Proportional to 135,341,779.43, 186,766,823.13 and 76,603,183.41
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Solution
The fourth proportional to 135,341,779.43, 186,766,823.13 and 76,603,183.41 is: 105,709,657.93
Step by Step Solution
- Step 1: Write the proportion equation
135,341,779.43 : 186,766,823.13 = 76,603,183.41 : x - Step 2: Convert to fraction form
135,341,779.43/186,766,823.13 = 76,603,183.41/x - Step 3: Cross multiply
135,341,779.43x = 186,766,823.13 × 76,603,183.41 - Step 4: Simplify right side
135,341,779.43x = 14,306,933,207,130,420 - Step 5: Solve for x
x = 14,306,933,207,130,420/135,341,779.43 - Step 6: Final answer
x = 105,709,657.93
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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.