Finding the Fourth Proportional to 1,087,768,679.08, 1,631,650,979.44 and 340,841,635.68
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Solution
The fourth proportional to 1,087,768,679.08, 1,631,650,979.44 and 340,841,635.68 is: 511,261,814.56
Step by Step Solution
- Step 1: Write the proportion equation
1,087,768,679.08 : 1,631,650,979.44 = 340,841,635.68 : x - Step 2: Convert to fraction form
1,087,768,679.08/1,631,650,979.44 = 340,841,635.68/x - Step 3: Cross multiply
1,087,768,679.08x = 1,631,650,979.44 × 340,841,635.68 - Step 4: Simplify right side
1,087,768,679.08x = 556,134,588,691,203,712 - Step 5: Solve for x
x = 556,134,588,691,203,712/1,087,768,679.08 - Step 6: Final answer
x = 511,261,814.56
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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.