Finding the Fourth Proportional to 8,239,131,031.40, 12,358,696,547.10 and 7,336,169,469.80
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Solution
The fourth proportional to 8,239,131,031.40, 12,358,696,547.10 and 7,336,169,469.80 is: 11,004,254,204.70
Step by Step Solution
- Step 1: Write the proportion equation
8,239,131,031.40 : 12,358,696,547.10 = 7,336,169,469.80 : x - Step 2: Convert to fraction form
8,239,131,031.40/12,358,696,547.10 = 7,336,169,469.80/x - Step 3: Cross multiply
8,239,131,031.40x = 12,358,696,547.10 × 7,336,169,469.80 - Step 4: Simplify right side
8,239,131,031.40x = 90,665,492,295,357,710,336 - Step 5: Solve for x
x = 90,665,492,295,357,710,336/8,239,131,031.40 - Step 6: Final answer
x = 11,004,254,204.70
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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.