Finding the Fourth Proportional to 13,338,303.12, 18,406,617.36 and 7,536,960
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Solution
The fourth proportional to 13,338,303.12, 18,406,617.36 and 7,536,960 is: 10,400,868.65
Step by Step Solution
- Step 1: Write the proportion equation
13,338,303.12 : 18,406,617.36 = 7,536,960 : x - Step 2: Convert to fraction form
13,338,303.12/18,406,617.36 = 7,536,960/x - Step 3: Cross multiply
13,338,303.12x = 18,406,617.36 × 7,536,960 - Step 4: Simplify right side
13,338,303.12x = 138,729,938,777,625.59 - Step 5: Solve for x
x = 138,729,938,777,625.59/13,338,303.12 - Step 6: Final answer
x = 10,400,868.65
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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.