Finding the Fourth Proportional to 882,961,946.96, 1,218,525,085.32 and 491,821,267.28
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Solution
The fourth proportional to 882,961,946.96, 1,218,525,085.32 and 491,821,267.28 is: 678,734,291.71
Step by Step Solution
- Step 1: Write the proportion equation
882,961,946.96 : 1,218,525,085.32 = 491,821,267.28 : x - Step 2: Convert to fraction form
882,961,946.96/1,218,525,085.32 = 491,821,267.28/x - Step 3: Cross multiply
882,961,946.96x = 1,218,525,085.32 × 491,821,267.28 - Step 4: Simplify right side
882,961,946.96x = 599,296,551,674,552,448 - Step 5: Solve for x
x = 599,296,551,674,552,448/882,961,946.96 - Step 6: Final answer
x = 678,734,291.71
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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.