Finding the Fourth Proportional to 13,198,931.18, 18,187,215.63 and 10,610,223.02
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Solution
The fourth proportional to 13,198,931.18, 18,187,215.63 and 10,610,223.02 is: 14,620,154.57
Step by Step Solution
- Step 1: Write the proportion equation
13,198,931.18 : 18,187,215.63 = 10,610,223.02 : x - Step 2: Convert to fraction form
13,198,931.18/18,187,215.63 = 10,610,223.02/x - Step 3: Cross multiply
13,198,931.18x = 18,187,215.63 × 10,610,223.02 - Step 4: Simplify right side
13,198,931.18x = 192,970,413,947,129.78 - Step 5: Solve for x
x = 192,970,413,947,129.78/13,198,931.18 - Step 6: Final answer
x = 14,620,154.57
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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.