Finding the Fourth Proportional to 287,602,055.36, 396,964,655.52 and 177,530,520.32
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Solution
The fourth proportional to 287,602,055.36, 396,964,655.52 and 177,530,520.32 is: 245,037,684.99
Step by Step Solution
- Step 1: Write the proportion equation
287,602,055.36 : 396,964,655.52 = 177,530,520.32 : x - Step 2: Convert to fraction form
287,602,055.36/396,964,655.52 = 177,530,520.32/x - Step 3: Cross multiply
287,602,055.36x = 396,964,655.52 × 177,530,520.32 - Step 4: Simplify right side
287,602,055.36x = 70,473,341,843,115,152 - Step 5: Solve for x
x = 70,473,341,843,115,152/287,602,055.36 - Step 6: Final answer
x = 245,037,684.99
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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.