Finding the Fourth Proportional to 260,816,625.30, 391,224,937.95 and 139,884,273.30
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Solution
The fourth proportional to 260,816,625.30, 391,224,937.95 and 139,884,273.30 is: 209,826,409.95
Step by Step Solution
- Step 1: Write the proportion equation
260,816,625.30 : 391,224,937.95 = 139,884,273.30 : x - Step 2: Convert to fraction form
260,816,625.30/391,224,937.95 = 139,884,273.30/x - Step 3: Cross multiply
260,816,625.30x = 391,224,937.95 × 139,884,273.30 - Step 4: Simplify right side
260,816,625.30x = 54,726,216,141,973,344 - Step 5: Solve for x
x = 54,726,216,141,973,344/260,816,625.30 - Step 6: Final answer
x = 209,826,409.95
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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.