Finding the Fourth Proportional to 45,661,547.70, 68,485,401.14 and 12,427,351.49
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Solution
The fourth proportional to 45,661,547.70, 68,485,401.14 and 12,427,351.49 is: 18,639,143.76
Step by Step Solution
- Step 1: Write the proportion equation
45,661,547.70 : 68,485,401.14 = 12,427,351.49 : x - Step 2: Convert to fraction form
45,661,547.70/68,485,401.14 = 12,427,351.49/x - Step 3: Cross multiply
45,661,547.70x = 68,485,401.14 × 12,427,351.49 - Step 4: Simplify right side
45,661,547.70x = 851,092,151,869,358.38 - Step 5: Solve for x
x = 851,092,151,869,358.38/45,661,547.70 - Step 6: Final answer
x = 18,639,143.76
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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.