Finding the Fourth Proportional to 561,338,977.50, 774,561,730.74 and 323,138,118.06
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Solution
The fourth proportional to 561,338,977.50, 774,561,730.74 and 323,138,118.06 is: 445,881,063.00
Step by Step Solution
- Step 1: Write the proportion equation
561,338,977.50 : 774,561,730.74 = 323,138,118.06 : x - Step 2: Convert to fraction form
561,338,977.50/774,561,730.74 = 323,138,118.06/x - Step 3: Cross multiply
561,338,977.50x = 774,561,730.74 × 323,138,118.06 - Step 4: Simplify right side
561,338,977.50x = 250,290,419,992,620,064 - Step 5: Solve for x
x = 250,290,419,992,620,064/561,338,977.50 - Step 6: Final answer
x = 445,881,063.00
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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.