Finding the Fourth Proportional to 991,930,486.40, 1,488,815,094.84 and 500,988,525.99
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Solution
The fourth proportional to 991,930,486.40, 1,488,815,094.84 and 500,988,525.99 is: 751,947,127.41
Step by Step Solution
- Step 1: Write the proportion equation
991,930,486.40 : 1,488,815,094.84 = 500,988,525.99 : x - Step 2: Convert to fraction form
991,930,486.40/1,488,815,094.84 = 500,988,525.99/x - Step 3: Cross multiply
991,930,486.40x = 1,488,815,094.84 × 500,988,525.99 - Step 4: Simplify right side
991,930,486.40x = 745,879,279,835,553,664 - Step 5: Solve for x
x = 745,879,279,835,553,664/991,930,486.40 - Step 6: Final answer
x = 751,947,127.41
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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.