Finding the Fourth Proportional to 79,638,314,907.25, 109,900,918,666.05 and 43,016,430,091.99
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Solution
The fourth proportional to 79,638,314,907.25, 109,900,918,666.05 and 43,016,430,091.99 is: 59,362,697,344.23
Step by Step Solution
- Step 1: Write the proportion equation
79,638,314,907.25 : 109,900,918,666.05 = 43,016,430,091.99 : x - Step 2: Convert to fraction form
79,638,314,907.25/109,900,918,666.05 = 43,016,430,091.99/x - Step 3: Cross multiply
79,638,314,907.25x = 109,900,918,666.05 × 43,016,430,091.99 - Step 4: Simplify right side
79,638,314,907.25x = 4,727,545,184,843,618,844,672 - Step 5: Solve for x
x = 4,727,545,184,843,618,844,672/79,638,314,907.25 - Step 6: Final answer
x = 59,362,697,344.23
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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.