Finding the Fourth Proportional to 7,621,582,985.47, 11,431,106,455.29 and 2,308,431,918.52
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Solution
The fourth proportional to 7,621,582,985.47, 11,431,106,455.29 and 2,308,431,918.52 is: 3,462,263,817.86
Step by Step Solution
- Step 1: Write the proportion equation
7,621,582,985.47 : 11,431,106,455.29 = 2,308,431,918.52 : x - Step 2: Convert to fraction form
7,621,582,985.47/11,431,106,455.29 = 2,308,431,918.52/x - Step 3: Cross multiply
7,621,582,985.47x = 11,431,106,455.29 × 2,308,431,918.52 - Step 4: Simplify right side
7,621,582,985.47x = 26,387,931,005,391,454,208 - Step 5: Solve for x
x = 26,387,931,005,391,454,208/7,621,582,985.47 - Step 6: Final answer
x = 3,462,263,817.86
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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.