Finding the Fourth Proportional to 12,130,207.40, 16,739,767.14 and 6,623,620.49
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Solution
The fourth proportional to 12,130,207.40, 16,739,767.14 and 6,623,620.49 is: 9,140,640.47
Step by Step Solution
- Step 1: Write the proportion equation
12,130,207.40 : 16,739,767.14 = 6,623,620.49 : x - Step 2: Convert to fraction form
12,130,207.40/16,739,767.14 = 6,623,620.49/x - Step 3: Cross multiply
12,130,207.40x = 16,739,767.14 × 6,623,620.49 - Step 4: Simplify right side
12,130,207.40x = 110,877,864,626,332.70 - Step 5: Solve for x
x = 110,877,864,626,332.70/12,130,207.40 - Step 6: Final answer
x = 9,140,640.47
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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.