Finding the Fourth Proportional to 630,193,941.84, 868,859,247.68 and 516,745,445.75
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Solution
The fourth proportional to 630,193,941.84, 868,859,247.68 and 516,745,445.75 is: 712,445,851.06
Step by Step Solution
- Step 1: Write the proportion equation
630,193,941.84 : 868,859,247.68 = 516,745,445.75 : x - Step 2: Convert to fraction form
630,193,941.84/868,859,247.68 = 516,745,445.75/x - Step 3: Cross multiply
630,193,941.84x = 868,859,247.68 × 516,745,445.75 - Step 4: Simplify right side
630,193,941.84x = 448,979,059,229,483,200 - Step 5: Solve for x
x = 448,979,059,229,483,200/630,193,941.84 - Step 6: Final answer
x = 712,445,851.06
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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.