Finding the Fourth Proportional to 55,690,318.09, 76,851,480.81 and 30,909,051.12
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Solution
The fourth proportional to 55,690,318.09, 76,851,480.81 and 30,909,051.12 is: 42,653,847.75
Step by Step Solution
- Step 1: Write the proportion equation
55,690,318.09 : 76,851,480.81 = 30,909,051.12 : x - Step 2: Convert to fraction form
55,690,318.09/76,851,480.81 = 30,909,051.12/x - Step 3: Cross multiply
55,690,318.09x = 76,851,480.81 × 30,909,051.12 - Step 4: Simplify right side
55,690,318.09x = 2,375,406,349,003,989 - Step 5: Solve for x
x = 2,375,406,349,003,989/55,690,318.09 - Step 6: Final answer
x = 42,653,847.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.