Finding the Fourth Proportional to 376,489,991.70, 564,734,987.55 and 376,489,991.70
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Solution
The fourth proportional to 376,489,991.70, 564,734,987.55 and 376,489,991.70 is: 564,734,987.55
Step by Step Solution
- Step 1: Write the proportion equation
376,489,991.70 : 564,734,987.55 = 376,489,991.70 : x - Step 2: Convert to fraction form
376,489,991.70/564,734,987.55 = 376,489,991.70/x - Step 3: Cross multiply
376,489,991.70x = 564,734,987.55 × 376,489,991.70 - Step 4: Simplify right side
376,489,991.70x = 212,617,070,775,399,072 - Step 5: Solve for x
x = 212,617,070,775,399,072/376,489,991.70 - Step 6: Final answer
x = 564,734,987.55
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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.