Finding the Fourth Proportional to 825,635,516.64, 1,139,120,509.08 and 468,344,408.08
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Solution
The fourth proportional to 825,635,516.64, 1,139,120,509.08 and 468,344,408.08 is: 646,169,780.50
Step by Step Solution
- Step 1: Write the proportion equation
825,635,516.64 : 1,139,120,509.08 = 468,344,408.08 : x - Step 2: Convert to fraction form
825,635,516.64/1,139,120,509.08 = 468,344,408.08/x - Step 3: Cross multiply
825,635,516.64x = 1,139,120,509.08 × 468,344,408.08 - Step 4: Simplify right side
825,635,516.64x = 533,500,720,556,860,800 - Step 5: Solve for x
x = 533,500,720,556,860,800/825,635,516.64 - Step 6: Final answer
x = 646,169,780.50
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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.