Finding the Fourth Proportional to 12,352,698.40, 18,536,326.80 and 5,163,678.40
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Solution
The fourth proportional to 12,352,698.40, 18,536,326.80 and 5,163,678.40 is: 7,748,560.45
Step by Step Solution
- Step 1: Write the proportion equation
12,352,698.40 : 18,536,326.80 = 5,163,678.40 : x - Step 2: Convert to fraction form
12,352,698.40/18,536,326.80 = 5,163,678.40/x - Step 3: Cross multiply
12,352,698.40x = 18,536,326.80 × 5,163,678.40 - Step 4: Simplify right side
12,352,698.40x = 95,715,630,312,501.12 - Step 5: Solve for x
x = 95,715,630,312,501.12/12,352,698.40 - Step 6: Final answer
x = 7,748,560.45
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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.