Finding the Fourth Proportional to 12,225,373.12, 16,871,419.49 and 6,718,943.10
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Solution
The fourth proportional to 12,225,373.12, 16,871,419.49 and 6,718,943.10 is: 9,272,363.83
Step by Step Solution
- Step 1: Write the proportion equation
12,225,373.12 : 16,871,419.49 = 6,718,943.10 : x - Step 2: Convert to fraction form
12,225,373.12/16,871,419.49 = 6,718,943.10/x - Step 3: Cross multiply
12,225,373.12x = 16,871,419.49 × 6,718,943.10 - Step 4: Simplify right side
12,225,373.12x = 113,358,107,569,541 - Step 5: Solve for x
x = 113,358,107,569,541/12,225,373.12 - Step 6: Final answer
x = 9,272,363.83
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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.