Finding the Fourth Proportional to 639,595,346.80, 882,644,395.44 and 346,239,914.80
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Solution
The fourth proportional to 639,595,346.80, 882,644,395.44 and 346,239,914.80 is: 477,812,607.31
Step by Step Solution
- Step 1: Write the proportion equation
639,595,346.80 : 882,644,395.44 = 346,239,914.80 : x - Step 2: Convert to fraction form
639,595,346.80/882,644,395.44 = 346,239,914.80/x - Step 3: Cross multiply
639,595,346.80x = 882,644,395.44 × 346,239,914.80 - Step 4: Simplify right side
639,595,346.80x = 305,606,720,275,843,136 - Step 5: Solve for x
x = 305,606,720,275,843,136/639,595,346.80 - Step 6: Final answer
x = 477,812,607.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.