Finding the Fourth Proportional to 21,130,363.68, 31,641,309.36 and 14,644,194.72
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Solution
The fourth proportional to 21,130,363.68, 31,641,309.36 and 14,644,194.72 is: 21,928,704.23
Step by Step Solution
- Step 1: Write the proportion equation
21,130,363.68 : 31,641,309.36 = 14,644,194.72 : x - Step 2: Convert to fraction form
21,130,363.68/31,641,309.36 = 14,644,194.72/x - Step 3: Cross multiply
21,130,363.68x = 31,641,309.36 × 14,644,194.72 - Step 4: Simplify right side
21,130,363.68x = 463,361,495,463,598.56 - Step 5: Solve for x
x = 463,361,495,463,598.56/21,130,363.68 - Step 6: Final answer
x = 21,928,704.23
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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.