Finding the Fourth Proportional to 8,199,283.70, 12,298,925.55 and 4,420,147.70
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Solution
The fourth proportional to 8,199,283.70, 12,298,925.55 and 4,420,147.70 is: 6,630,221.55
Step by Step Solution
- Step 1: Write the proportion equation
8,199,283.70 : 12,298,925.55 = 4,420,147.70 : x - Step 2: Convert to fraction form
8,199,283.70/12,298,925.55 = 4,420,147.70/x - Step 3: Cross multiply
8,199,283.70x = 12,298,925.55 × 4,420,147.70 - Step 4: Simplify right side
8,199,283.70x = 54,363,067,482,303.74 - Step 5: Solve for x
x = 54,363,067,482,303.74/8,199,283.70 - Step 6: Final answer
x = 6,630,221.55
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1.5x scale
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.