Finding the Fourth Proportional to 128,929,497.93, 193,415,242.10 and 38,062,272.33
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Solution
The fourth proportional to 128,929,497.93, 193,415,242.10 and 38,062,272.33 is: 57,099,606.65
Step by Step Solution
- Step 1: Write the proportion equation
128,929,497.93 : 193,415,242.10 = 38,062,272.33 : x - Step 2: Convert to fraction form
128,929,497.93/193,415,242.10 = 38,062,272.33/x - Step 3: Cross multiply
128,929,497.93x = 193,415,242.10 × 38,062,272.33 - Step 4: Simplify right side
128,929,497.93x = 7,361,823,617,392,769 - Step 5: Solve for x
x = 7,361,823,617,392,769/128,929,497.93 - Step 6: Final answer
x = 57,099,606.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.