Finding the Fourth Proportional to 111,506,774.20, 167,260,161.30 and 87,320,303.80
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Solution
The fourth proportional to 111,506,774.20, 167,260,161.30 and 87,320,303.80 is: 130,980,455.70
Step by Step Solution
- Step 1: Write the proportion equation
111,506,774.20 : 167,260,161.30 = 87,320,303.80 : x - Step 2: Convert to fraction form
111,506,774.20/167,260,161.30 = 87,320,303.80/x - Step 3: Cross multiply
111,506,774.20x = 167,260,161.30 × 87,320,303.80 - Step 4: Simplify right side
111,506,774.20x = 14,605,208,098,353,004 - Step 5: Solve for x
x = 14,605,208,098,353,004/111,506,774.20 - Step 6: Final answer
x = 130,980,455.70
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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.