Finding the Fourth Proportional to 12,221,036.10, 18,331,554.15 and 6,552,332.10
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Solution
The fourth proportional to 12,221,036.10, 18,331,554.15 and 6,552,332.10 is: 9,828,498.15
Step by Step Solution
- Step 1: Write the proportion equation
12,221,036.10 : 18,331,554.15 = 6,552,332.10 : x - Step 2: Convert to fraction form
12,221,036.10/18,331,554.15 = 6,552,332.10/x - Step 3: Cross multiply
12,221,036.10x = 18,331,554.15 × 6,552,332.10 - Step 4: Simplify right side
12,221,036.10x = 120,114,430,699,933.20 - Step 5: Solve for x
x = 120,114,430,699,933.20/12,221,036.10 - Step 6: Final answer
x = 9,828,498.15
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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.