Finding the Fourth Proportional to 726,740,328.80, 1,090,110,493.20 and 358,451,715.80
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Solution
The fourth proportional to 726,740,328.80, 1,090,110,493.20 and 358,451,715.80 is: 537,677,573.70
Step by Step Solution
- Step 1: Write the proportion equation
726,740,328.80 : 1,090,110,493.20 = 358,451,715.80 : x - Step 2: Convert to fraction form
726,740,328.80/1,090,110,493.20 = 358,451,715.80/x - Step 3: Cross multiply
726,740,328.80x = 1,090,110,493.20 × 358,451,715.80 - Step 4: Simplify right side
726,740,328.80x = 390,751,976,699,124,288 - Step 5: Solve for x
x = 390,751,976,699,124,288/726,740,328.80 - Step 6: Final answer
x = 537,677,573.70
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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.