Finding the Fourth Proportional to 112,355,944.80, 168,533,917.20 and 86,846,776.80
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Solution
The fourth proportional to 112,355,944.80, 168,533,917.20 and 86,846,776.80 is: 130,270,165.20
Step by Step Solution
- Step 1: Write the proportion equation
112,355,944.80 : 168,533,917.20 = 86,846,776.80 : x - Step 2: Convert to fraction form
112,355,944.80/168,533,917.20 = 86,846,776.80/x - Step 3: Cross multiply
112,355,944.80x = 168,533,917.20 × 86,846,776.80 - Step 4: Simplify right side
112,355,944.80x = 14,636,627,490,298,080 - Step 5: Solve for x
x = 14,636,627,490,298,080/112,355,944.80 - Step 6: Final answer
x = 130,270,165.20
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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.