Finding the Fourth Proportional to 8,448,638.16, 12,648,806.28 and 7,912,341.84
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Solution
The fourth proportional to 8,448,638.16, 12,648,806.28 and 7,912,341.84 is: 11,845,894.84
Step by Step Solution
- Step 1: Write the proportion equation
8,448,638.16 : 12,648,806.28 = 7,912,341.84 : x - Step 2: Convert to fraction form
8,448,638.16/12,648,806.28 = 7,912,341.84/x - Step 3: Cross multiply
8,448,638.16x = 12,648,806.28 × 7,912,341.84 - Step 4: Simplify right side
8,448,638.16x = 100,081,679,155,298.75 - Step 5: Solve for x
x = 100,081,679,155,298.75/8,448,638.16 - Step 6: Final answer
x = 11,845,894.84
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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.