Finding the Fourth Proportional to 885,109,977.95, 1,221,419,774.58 and 488,624,470.99
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Solution
The fourth proportional to 885,109,977.95, 1,221,419,774.58 and 488,624,470.99 is: 674,284,107.16
Step by Step Solution
- Step 1: Write the proportion equation
885,109,977.95 : 1,221,419,774.58 = 488,624,470.99 : x - Step 2: Convert to fraction form
885,109,977.95/1,221,419,774.58 = 488,624,470.99/x - Step 3: Cross multiply
885,109,977.95x = 1,221,419,774.58 × 488,624,470.99 - Step 4: Simplify right side
885,109,977.95x = 596,815,591,212,904,832 - Step 5: Solve for x
x = 596,815,591,212,904,832/885,109,977.95 - Step 6: Final answer
x = 674,284,107.16
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1.5x scale
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.