Finding the Fourth Proportional to 66,493,026.13, 91,791,476.73 and 38,610,305.21
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Solution
The fourth proportional to 66,493,026.13, 91,791,476.73 and 38,610,305.21 is: 53,300,280.32
Step by Step Solution
- Step 1: Write the proportion equation
66,493,026.13 : 91,791,476.73 = 38,610,305.21 : x - Step 2: Convert to fraction form
66,493,026.13/91,791,476.73 = 38,610,305.21/x - Step 3: Cross multiply
66,493,026.13x = 91,791,476.73 × 38,610,305.21 - Step 4: Simplify right side
66,493,026.13x = 3,544,096,932,221,913 - Step 5: Solve for x
x = 3,544,096,932,221,913/66,493,026.13 - Step 6: Final answer
x = 53,300,280.32
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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.