Finding the Fourth Proportional to 188,972,331.58, 260,781,815.40 and 102,052,203.58
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Solution
The fourth proportional to 188,972,331.58, 260,781,815.40 and 102,052,203.58 is: 140,832,039.76
Step by Step Solution
- Step 1: Write the proportion equation
188,972,331.58 : 260,781,815.40 = 102,052,203.58 : x - Step 2: Convert to fraction form
188,972,331.58/260,781,815.40 = 102,052,203.58/x - Step 3: Cross multiply
188,972,331.58x = 260,781,815.40 × 102,052,203.58 - Step 4: Simplify right side
188,972,331.58x = 26,613,358,915,162,780 - Step 5: Solve for x
x = 26,613,358,915,162,780/188,972,331.58 - Step 6: Final answer
x = 140,832,039.76
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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.