Finding the Fourth Proportional to 1,416,776,218.24, 1,955,778,114.28 and 915,229,549.68
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Solution
The fourth proportional to 1,416,776,218.24, 1,955,778,114.28 and 915,229,549.68 is: 1,263,421,773.86
Step by Step Solution
- Step 1: Write the proportion equation
1,416,776,218.24 : 1,955,778,114.28 = 915,229,549.68 : x - Step 2: Convert to fraction form
1,416,776,218.24/1,955,778,114.28 = 915,229,549.68/x - Step 3: Cross multiply
1,416,776,218.24x = 1,955,778,114.28 × 915,229,549.68 - Step 4: Simplify right side
1,416,776,218.24x = 1,789,985,922,806,483,968 - Step 5: Solve for x
x = 1,789,985,922,806,483,968/1,416,776,218.24 - Step 6: Final answer
x = 1,263,421,773.86
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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.