Finding the Fourth Proportional to 48,512,129.10, 72,768,193.65 and 19,778,885.70
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Solution
The fourth proportional to 48,512,129.10, 72,768,193.65 and 19,778,885.70 is: 29,668,328.55
Step by Step Solution
- Step 1: Write the proportion equation
48,512,129.10 : 72,768,193.65 = 19,778,885.70 : x - Step 2: Convert to fraction form
48,512,129.10/72,768,193.65 = 19,778,885.70/x - Step 3: Cross multiply
48,512,129.10x = 72,768,193.65 × 19,778,885.70 - Step 4: Simplify right side
48,512,129.10x = 1,439,273,784,798,815.75 - Step 5: Solve for x
x = 1,439,273,784,798,815.75/48,512,129.10 - Step 6: Final answer
x = 29,668,328.55
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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.