Finding the Fourth Proportional to 245,423,336.22, 338,683,968.27 and 135,415,054.62
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Solution
The fourth proportional to 245,423,336.22, 338,683,968.27 and 135,415,054.62 is: 186,872,645.32
Step by Step Solution
- Step 1: Write the proportion equation
245,423,336.22 : 338,683,968.27 = 135,415,054.62 : x - Step 2: Convert to fraction form
245,423,336.22/338,683,968.27 = 135,415,054.62/x - Step 3: Cross multiply
245,423,336.22x = 338,683,968.27 × 135,415,054.62 - Step 4: Simplify right side
245,423,336.22x = 45,862,908,062,200,392 - Step 5: Solve for x
x = 45,862,908,062,200,392/245,423,336.22 - Step 6: Final answer
x = 186,872,645.32
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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.