Finding the Fourth Proportional to 129,366,050.76, 178,522,421.99 and 70,625,877.03
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Solution
The fourth proportional to 129,366,050.76, 178,522,421.99 and 70,625,877.03 is: 97,462,220.95
Step by Step Solution
- Step 1: Write the proportion equation
129,366,050.76 : 178,522,421.99 = 70,625,877.03 : x - Step 2: Convert to fraction form
129,366,050.76/178,522,421.99 = 70,625,877.03/x - Step 3: Cross multiply
129,366,050.76x = 178,522,421.99 × 70,625,877.03 - Step 4: Simplify right side
129,366,050.76x = 12,608,302,622,210,380 - Step 5: Solve for x
x = 12,608,302,622,210,380/129,366,050.76 - Step 6: Final answer
x = 97,462,220.95
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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.