Finding the Fourth Proportional to 86,697,976.08, 129,955,929.60 and 29,170,275.12
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Solution
The fourth proportional to 86,697,976.08, 129,955,929.60 and 29,170,275.12 is: 43,724,783.34
Step by Step Solution
- Step 1: Write the proportion equation
86,697,976.08 : 129,955,929.60 = 29,170,275.12 : x - Step 2: Convert to fraction form
86,697,976.08/129,955,929.60 = 29,170,275.12/x - Step 3: Cross multiply
86,697,976.08x = 129,955,929.60 × 29,170,275.12 - Step 4: Simplify right side
86,697,976.08x = 3,790,850,219,907,351.50 - Step 5: Solve for x
x = 3,790,850,219,907,351.50/86,697,976.08 - Step 6: Final answer
x = 43,724,783.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.