Finding the Fourth Proportional to 450,190,709.19, 621,328,425.91 and 259,414,611.02
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Solution
The fourth proportional to 450,190,709.19, 621,328,425.91 and 259,414,611.02 is: 358,029,760.79
Step by Step Solution
- Step 1: Write the proportion equation
450,190,709.19 : 621,328,425.91 = 259,414,611.02 : x - Step 2: Convert to fraction form
450,190,709.19/621,328,425.91 = 259,414,611.02/x - Step 3: Cross multiply
450,190,709.19x = 621,328,425.91 × 259,414,611.02 - Step 4: Simplify right side
450,190,709.19x = 161,181,671,921,686,368 - Step 5: Solve for x
x = 161,181,671,921,686,368/450,190,709.19 - Step 6: Final answer
x = 358,029,760.79
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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.