Finding the Fourth Proportional to 21,160,312.01, 29,201,550.53 and 11,869,941.48
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Solution
The fourth proportional to 21,160,312.01, 29,201,550.53 and 11,869,941.48 is: 16,380,698.72
Step by Step Solution
- Step 1: Write the proportion equation
21,160,312.01 : 29,201,550.53 = 11,869,941.48 : x - Step 2: Convert to fraction form
21,160,312.01/29,201,550.53 = 11,869,941.48/x - Step 3: Cross multiply
21,160,312.01x = 29,201,550.53 × 11,869,941.48 - Step 4: Simplify right side
21,160,312.01x = 346,620,695,916,363 - Step 5: Solve for x
x = 346,620,695,916,363/21,160,312.01 - Step 6: Final answer
x = 16,380,698.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.