Finding the Fourth Proportional to 470,481,418.44, 705,604,795.44 and 138,422,353.20
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Solution
The fourth proportional to 470,481,418.44, 705,604,795.44 and 138,422,353.20 is: 207,599,008.99
Step by Step Solution
- Step 1: Write the proportion equation
470,481,418.44 : 705,604,795.44 = 138,422,353.20 : x - Step 2: Convert to fraction form
470,481,418.44/705,604,795.44 = 138,422,353.20/x - Step 3: Cross multiply
470,481,418.44x = 705,604,795.44 × 138,422,353.20 - Step 4: Simplify right side
470,481,418.44x = 97,671,476,214,009,424 - Step 5: Solve for x
x = 97,671,476,214,009,424/470,481,418.44 - Step 6: Final answer
x = 207,599,008.99
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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.