Finding the Fourth Proportional to 631,987,108.11, 948,355,166.63 and 352,102,288.70
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Solution
The fourth proportional to 631,987,108.11, 948,355,166.63 and 352,102,288.70 is: 528,362,082.67
Step by Step Solution
- Step 1: Write the proportion equation
631,987,108.11 : 948,355,166.63 = 352,102,288.70 : x - Step 2: Convert to fraction form
631,987,108.11/948,355,166.63 = 352,102,288.70/x - Step 3: Cross multiply
631,987,108.11x = 948,355,166.63 × 352,102,288.70 - Step 4: Simplify right side
631,987,108.11x = 333,918,024,664,390,592 - Step 5: Solve for x
x = 333,918,024,664,390,592/631,987,108.11 - Step 6: Final answer
x = 528,362,082.67
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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.