Finding the Fourth Proportional to 13,302,607.86, 18,357,625.62 and 7,191,036.36
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Solution
The fourth proportional to 13,302,607.86, 18,357,625.62 and 7,191,036.36 is: 9,923,644.65
Step by Step Solution
- Step 1: Write the proportion equation
13,302,607.86 : 18,357,625.62 = 7,191,036.36 : x - Step 2: Convert to fraction form
13,302,607.86/18,357,625.62 = 7,191,036.36/x - Step 3: Cross multiply
13,302,607.86x = 18,357,625.62 × 7,191,036.36 - Step 4: Simplify right side
13,302,607.86x = 132,010,353,316,687.56 - Step 5: Solve for x
x = 132,010,353,316,687.56/13,302,607.86 - Step 6: Final answer
x = 9,923,644.65
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1.5x scale
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.