Finding the Fourth Proportional to 121,166,213.80, 181,749,320.70 and 102,034,337.80
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Solution
The fourth proportional to 121,166,213.80, 181,749,320.70 and 102,034,337.80 is: 153,051,506.70
Step by Step Solution
- Step 1: Write the proportion equation
121,166,213.80 : 181,749,320.70 = 102,034,337.80 : x - Step 2: Convert to fraction form
121,166,213.80/181,749,320.70 = 102,034,337.80/x - Step 3: Cross multiply
121,166,213.80x = 181,749,320.70 × 102,034,337.80 - Step 4: Simplify right side
121,166,213.80x = 18,544,671,583,224,332 - Step 5: Solve for x
x = 18,544,671,583,224,332/121,166,213.80 - Step 6: Final answer
x = 153,051,506.70
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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.