Finding the Fourth Proportional to 753,118,276.10, 1,129,702,899.98 and 200,421,249.62
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Solution
The fourth proportional to 753,118,276.10, 1,129,702,899.98 and 200,421,249.62 is: 300,638,656.76
Step by Step Solution
- Step 1: Write the proportion equation
753,118,276.10 : 1,129,702,899.98 = 200,421,249.62 : x - Step 2: Convert to fraction form
753,118,276.10/1,129,702,899.98 = 200,421,249.62/x - Step 3: Cross multiply
753,118,276.10x = 1,129,702,899.98 × 200,421,249.62 - Step 4: Simplify right side
753,118,276.10x = 226,416,466,908,182,048 - Step 5: Solve for x
x = 226,416,466,908,182,048/753,118,276.10 - Step 6: Final answer
x = 300,638,656.76
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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.