Finding the Fourth Proportional to 13,057,430.88, 18,000,263.20 and 9,124,978.09
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Solution
The fourth proportional to 13,057,430.88, 18,000,263.20 and 9,124,978.09 is: 12,579,197.92
Step by Step Solution
- Step 1: Write the proportion equation
13,057,430.88 : 18,000,263.20 = 9,124,978.09 : x - Step 2: Convert to fraction form
13,057,430.88/18,000,263.20 = 9,124,978.09/x - Step 3: Cross multiply
13,057,430.88x = 18,000,263.20 × 9,124,978.09 - Step 4: Simplify right side
13,057,430.88x = 164,252,007,246,295.91 - Step 5: Solve for x
x = 164,252,007,246,295.91/13,057,430.88 - Step 6: Final answer
x = 12,579,197.92
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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.