Finding the Fourth Proportional to 12,125,031,750.90, 18,187,547,626.35 and 8,859,858,246.90
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Solution
The fourth proportional to 12,125,031,750.90, 18,187,547,626.35 and 8,859,858,246.90 is: 13,289,787,370.35
Step by Step Solution
- Step 1: Write the proportion equation
12,125,031,750.90 : 18,187,547,626.35 = 8,859,858,246.90 : x - Step 2: Convert to fraction form
12,125,031,750.90/18,187,547,626.35 = 8,859,858,246.90/x - Step 3: Cross multiply
12,125,031,750.90x = 18,187,547,626.35 × 8,859,858,246.90 - Step 4: Simplify right side
12,125,031,750.90x = 161,139,093,828,203,544,576 - Step 5: Solve for x
x = 161,139,093,828,203,544,576/12,125,031,750.90 - Step 6: Final answer
x = 13,289,787,370.35
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1.5x scale
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.