Finding the Fourth Proportional to 265,720,998.30, 398,581,497.45 and 129,672,102.30
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Solution
The fourth proportional to 265,720,998.30, 398,581,497.45 and 129,672,102.30 is: 194,508,153.45
Step by Step Solution
- Step 1: Write the proportion equation
265,720,998.30 : 398,581,497.45 = 129,672,102.30 : x - Step 2: Convert to fraction form
265,720,998.30/398,581,497.45 = 129,672,102.30/x - Step 3: Cross multiply
265,720,998.30x = 398,581,497.45 × 129,672,102.30 - Step 4: Simplify right side
265,720,998.30x = 51,684,900,712,223,584 - Step 5: Solve for x
x = 51,684,900,712,223,584/265,720,998.30 - Step 6: Final answer
x = 194,508,153.45
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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.