Finding the Fourth Proportional to 217,025,988.56, 325,525,798.84 and 76,973,385.68
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Solution
The fourth proportional to 217,025,988.56, 325,525,798.84 and 76,973,385.68 is: 115,455,402.50
Step by Step Solution
- Step 1: Write the proportion equation
217,025,988.56 : 325,525,798.84 = 76,973,385.68 : x - Step 2: Convert to fraction form
217,025,988.56/325,525,798.84 = 76,973,385.68/x - Step 3: Cross multiply
217,025,988.56x = 325,525,798.84 × 76,973,385.68 - Step 4: Simplify right side
217,025,988.56x = 25,056,822,862,901,416 - Step 5: Solve for x
x = 25,056,822,862,901,416/217,025,988.56 - Step 6: Final answer
x = 115,455,402.50
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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.