Finding the Fourth Proportional to 8,239,136,342.40, 12,358,704,513.60 and 7,336,174,780.80
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Solution
The fourth proportional to 8,239,136,342.40, 12,358,704,513.60 and 7,336,174,780.80 is: 11,004,262,171.20
Step by Step Solution
- Step 1: Write the proportion equation
8,239,136,342.40 : 12,358,704,513.60 = 7,336,174,780.80 : x - Step 2: Convert to fraction form
8,239,136,342.40/12,358,704,513.60 = 7,336,174,780.80/x - Step 3: Cross multiply
8,239,136,342.40x = 12,358,704,513.60 × 7,336,174,780.80 - Step 4: Simplify right side
8,239,136,342.40x = 90,665,616,376,031,461,376 - Step 5: Solve for x
x = 90,665,616,376,031,461,376/8,239,136,342.40 - Step 6: Final answer
x = 11,004,262,171.20
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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.