Finding the Fourth Proportional to 13,358,994.12, 18,435,418.56 and 7,247,421
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Solution
The fourth proportional to 13,358,994.12, 18,435,418.56 and 7,247,421 is: 10,001,444.60
Step by Step Solution
- Step 1: Write the proportion equation
13,358,994.12 : 18,435,418.56 = 7,247,421 : x - Step 2: Convert to fraction form
13,358,994.12/18,435,418.56 = 7,247,421/x - Step 3: Cross multiply
13,358,994.12x = 18,435,418.56 × 7,247,421 - Step 4: Simplify right side
13,358,994.12x = 133,609,239,615,533.75 - Step 5: Solve for x
x = 133,609,239,615,533.75/13,358,994.12 - Step 6: Final answer
x = 10,001,444.60
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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.