Finding the Fourth Proportional to 132,134,428.80, 198,201,643.20 and 98,122,204.80
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Solution
The fourth proportional to 132,134,428.80, 198,201,643.20 and 98,122,204.80 is: 147,183,307.20
Step by Step Solution
- Step 1: Write the proportion equation
132,134,428.80 : 198,201,643.20 = 98,122,204.80 : x - Step 2: Convert to fraction form
132,134,428.80/198,201,643.20 = 98,122,204.80/x - Step 3: Cross multiply
132,134,428.80x = 198,201,643.20 × 98,122,204.80 - Step 4: Simplify right side
132,134,428.80x = 19,447,982,225,766,924 - Step 5: Solve for x
x = 19,447,982,225,766,924/132,134,428.80 - Step 6: Final answer
x = 147,183,307.20
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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.