Finding the Fourth Proportional to 286,684,830.40, 395,613,670.74 and 169,247,990.48
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Solution
The fourth proportional to 286,684,830.40, 395,613,670.74 and 169,247,990.48 is: 233,555,499.56
Step by Step Solution
- Step 1: Write the proportion equation
286,684,830.40 : 395,613,670.74 = 169,247,990.48 : x - Step 2: Convert to fraction form
286,684,830.40/395,613,670.74 = 169,247,990.48/x - Step 3: Cross multiply
286,684,830.40x = 395,613,670.74 × 169,247,990.48 - Step 4: Simplify right side
286,684,830.40x = 66,956,818,779,161,368 - Step 5: Solve for x
x = 66,956,818,779,161,368/286,684,830.40 - Step 6: Final answer
x = 233,555,499.56
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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.